U.S. Supreme Court

SONY CORP. v. UNIVERSAL CITY STUDIOS, INC., 464 U.S. 417 (1984)

464 U.S. 417

SONY CORPORATION OF AMERICA ET AL. v. UNIVERSAL CITY STUDIOS,

INC., ET AL.

CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT

No. 81-1687.

Argued January 18, 1983 Reargued October 3, 1983

Decided January 17, 1984

Petitioner Sony Corp. manufactures home video tape recorders (VTR's), and markets them through retail establishments, some of which are also petitioners. Respondents own the copyrights on some of the television programs that are broadcast on the public airwaves. Respondents brought an action against petitioners in Federal District Court, alleging that VTR consumers had been recording some of respondents' copy-righted works that had been exhibited on commercially sponsored television and thereby infringed respondents' copyrights, and further that petitioners were liable for such copyright infringement because of their marketing of the VTR's. Respondents sought money damages, an equitable accounting of profits, and an injunction against the manufacture and marketing of the VTR's. The District Court denied respondents all relief, holding that noncommercial home use recording of material broadcast over the public airwaves was a fair use of copyrighted works and did not constitute copyright infringement, and that petitioners could not be held liable as contributory infringers even if the home use of a VTR was considered an infringing use. The Court of Appeals reversed, holding petitioners liable for contributory infringement and ordering the District Court to fashion appropriate relief.

Held:

The sale of the VTR's to the general public does not constitute contributory infringement of respondents' copyrights. Pp. 428-456.

(a) The protection given to copyrights is wholly statutory, and, in a case like this, in which Congress has not plainly marked the course to be followed by the judiciary, this Court must be circumspect in construing the scope of rights created by a statute that never contemplated such a calculus of interests. Any individual may reproduce a copyrighted work for a "fair use"; the copyright owner does not possess the exclusive right to such a use. Pp. 428-434.

(b) Kalem Co. v. Harper Brothers,  222 U.S. 55 , does not support respondents' novel theory that supplying the "means" to accomplish an infringing activity and encouraging that activity through advertisement are sufficient to establish liability for copyright infringement. This case does not fall in the category of those in which it is manifestly just to

impose vicarious liability because the "contributory" infringer was in a position to control the use of copyrighted works by others and had authorized the use without permission from the copyright owner. Here, the only contact between petitioners and the users of the VTR's occurred at the moment of sale. And there is no precedent for imposing vicarious liability on the theory that petitioners sold the VTR's with constructive knowledge that their customers might use the equipment to make unauthorized copies of copyrighted material. The sale of copying equipment, like the sale of other articles of commerce, does not constitute contributory infringement if the product is widely used for legitimate, unobjectionable purposes, or, indeed, is merely capable of substantial noninfringing uses. Pp. 434-442.

(c) The record and the District Court's findings show (1) that there is a significant likelihood that substantial numbers of copyright holders who license their works for broadcast on free television would not object to having their broadcast time-shifted by private viewers (i. e., recorded at a time when the VTR owner cannot view the broadcast so that it can be watched at a later time); and (2) that there is no likelihood that time-shifting would cause nonminimal harm to the potential market for, or the value of, respondents' copyrighted works. The VTR's are therefore capable of substantial noninfringing uses. Private, noncommercial time-shifting in the home satisfies this standard of noninfringing uses both because respondents have no right to prevent other copyright holders from authorizing such time-shifting for their programs, and because the District Court's findings reveal that even the unauthorized home time-shifting of respondents' programs is legitimate fair use. Pp. 442-456.

 659 F.2d 963, reversed.

STEVENS, J., delivered the opinion of the Court in which BURGER, C. J., and BRENNAN, WHITE, and O'CONNOR, JJ., joined. BLACKMUN, J., filed a dissenting opinion in which MARSHALL, POWELL, and REHNQUIST, JJ., joined, post, p. 457.

Dean C. Dunlavey reargued the cause for petitioners. With him on the briefs were Donald E. Sloan and Marshall Rutter.

Stephen A. Kroft reargued the cause for respondents. With him on the brief was Sondra E. Berchin.^{Footnote *}

Briefs of amici curiae urging affirmance were filed for the Association of American Publishers, Inc., et al. by Charles H. Lieb and Jon A. Baumgarten; for the Authors League of America, Inc., by Irwin Karp; for CBS Inc. by Lloyd N. Cutler, Louis R. Cohen, and George Vradenburg III; for Creators and Distributors of Programs by Stuart Robinowitz and Andrew J. Peck; for the International Alliance of Theatrical Stage Employees and Moving Picture Machine Operators of the United States and Canada, AFL-CIO, by Leo Geffner; for the Motion Picture Association of America, Inc., by Richard M. Cooper, Ellen S. Huvelle, and William Nix; for the National Music Publishers' Association, Inc., by Jon A. Baumgarten; for the Recording Industry Association of America, Inc., by James F. Fitzpatrick, Cary H. Sherman, and Ernest S. Meyers; for Volunteer Lawyers for the Arts, Inc., by I. Fred Koenigsberg; and for the Writers Guild of America, West, Inc., et al. by Paul P. Selvin, Jerome B. Lurie, and Paul S. Berger.

Briefs of amici curiae were filed for the State of Missouri et al. by John Ashcroft, Attorney General of Missouri, and by the Attorneys General for their respective States as follows: Charles A. Graddick of Alabama, John Steven Clark of Arkansas, Michael J. Bowers of Georgia, Tany S. Hong of Hawaii, Tyrone C. Fahner of Illinois, Thomas J. Miller of Iowa, William J. Guste, Jr., of Louisiana, William A. Allain of Mississippi, Michael T. Greely of Montana, Rufus L. Edmisten of North Carolina, William J. Brown of Ohio, Jan Eric Cartwright of Oklahoma, Dennis J. Roberts II of Rhode Island, John J. Easton of Vermont, Gerald L. Baliles of Virginia, and Bronson C. La Follette of Wisconsin; and for the Committee on Copyright

and Literary Property of the Association of the Bar of the City of New York by Michael S. Oberman and David H. Marks.

JUSTICE STEVENS delivered the opinion of the Court.

Petitioners manufacture and sell home video tape recorders. Respondents own the copyrights on some of the television

programs that are broadcast on the public airwaves. Some members of the general public use video tape recorders sold by petitioners to record some of these broadcasts, as well as a large number of other broadcasts. The question presented is whether the sale of petitioners' copying equipment to the general public violates any of the rights conferred upon respondents by the Copyright Act.

Respondents commenced this copyright infringement action against petitioners in the United States District Court for the Central District of California in 1976. Respondents alleged that some individuals had used Betamax video tape recorders (VTR's) to record some of respondents' copyrighted works which had been exhibited on commercially sponsored television and contended that these individuals had thereby infringed respondents' copyrights. Respondents further maintained that petitioners were liable for the copyright infringement allegedly committed by Betamax consumers because of petitioners' marketing of the Betamax VTR's.[^{Footnote 1} ] Respondents sought no relief against any Betamax consumer. Instead, they sought money damages and an equitable accounting of profits from petitioners, as well as an injunction against the manufacture and marketing of Betamax VTR's.

After a lengthy trial, the District Court denied respondents all the relief they sought and entered judgment for petitioners. 480 F. Supp. 429 (1979). The United States Court of Appeals for the Ninth Circuit reversed the District Court's judgment on respondents' copyright claim, holding petitioners liable for contributory infringement and ordering the District Court to fashion appropriate relief.  659 F.2d 963

(1981). We granted certiorari, 457 U.S. 1116 (1982); since we had not completed our study of the case last Term, we ordered reargument,  463 U.S. 1226 (1983). We now reverse.

An explanation of our rejection of respondents' unprecedented attempt to impose copyright liability upon the distributors of copying equipment requires a quite detailed recitation of the findings of the District Court. In summary, those findings reveal that the average member of the public uses a VTR principally to record a program he cannot view as it is being televised and then to watch it once at a later time. This practice, known as "time-shifting," enlarges the television viewing audience. For that reason, a significant amount of television programming may be used in this manner without objection from the owners of the copyrights on the programs. For the same reason, even the two respondents in this case, who do assert objections to time-shifting in this litigation, were unable to prove that the practice has impaired the commercial value of their copyrights or has created any likelihood of future harm. Given these findings, there is no basis in the Copyright Act upon which respondents can hold petitioners liable for distributing VTR's to the general public. The Court of Appeals' holding that respondents are entitled to enjoin the distribution of VTR's, to collect royalties on the sale of such equipment, or to obtain other relief, if affirmed, would enlarge the scope of respondents' statutory monopolies to encompass control over an article of commerce that is not the subject of copyright protection. Such an expansion of the copyright privilege is beyond the limits of the grants authorized by Congress.

I

The two respondents in this action, Universal City Studios, Inc., and Walt Disney Productions, produce and hold the copyrights on a substantial number of motion pictures and other audiovisual works. In the current marketplace, they can exploit their rights in these works in a number of ways:

by authorizing theatrical exhibitions, by licensing limited showings on cable and network television, by selling syndication rights for repeated airings on local television stations, and by marketing programs on prerecorded videotapes or videodiscs. Some works are suitable for exploitation through all of these avenues, while the market for other works is more limited.

Petitioner Sony manufactures millions of Betamax video tape recorders and markets these devices through numerous retail establishments, some of which are also petitioners in this action.[^{Footnote 2} ] Sony's Betamax VTR is a mechanism consisting of three basic components: (1) a tuner, which receives electromagnetic signals transmitted over the television band of the public airwaves and separates them into audio and visual signals; (2) a recorder, which records such signals on a magnetic tape; and (3) an adapter, which converts the audio and visual signals on the tape into a composite signal that can be received by a television set.

Several capabilities of the machine are noteworthy. The separate tuner in the Betamax enables it to record a broadcast off one station while the television set is tuned to another channel, permitting the viewer, for example, to watch two simultaneous news broadcasts by watching one "live" and recording the other for later viewing. Tapes may be reused, and programs that have been recorded may be erased either before or after viewing. A timer in the Betamax can be used to activate and deactivate the equipment at predetermined

times, enabling an intended viewer to record programs that are transmitted when he or she is not at home. Thus a person may watch a program at home in the evening even though it was broadcast while the viewer was at work during the afternoon. The Betamax is also equipped with a pause button and a fast-forward control. The pause button, when depressed, deactivates the recorder until it is released, thus enabling a viewer to omit a commercial advertisement from the recording, provided, of course, that the viewer is present when the program is recorded. The fast-forward control enables the viewer of a previously recorded program to run the tape rapidly when a segment he or she does not desire to see is being played back on the television screen.

The respondents and Sony both conducted surveys of the way the Betamax machine was used by several hundred owners during a sample period in 1978. Although there were some differences in the surveys, they both showed that the primary use of the machine for most owners was "time-shifting" - the practice of recording a program to view it once at a later time, and thereafter erasing it. Time-shifting enables viewers to see programs they otherwise would miss because they are not at home, are occupied with other tasks, or are viewing a program on another station at the time of a broadcast that they desire to watch. Both surveys also showed, however, that a substantial number of interviewees had accumulated libraries of tapes.[^{Footnote 3} ] Sony's survey indicated

that over 80% of the interviewees watched at least as much regular television as they had before owning a Betamax.[^{Footnote 4} ] Respondents offered no evidence of decreased television viewing by Betamax owners.[^{Footnote 5} ]

Sony introduced considerable evidence describing television programs that could be copied without objection from any copyright holder, with special emphasis on sports, religious, and educational programming. For example, their survey indicated that 7.3% of all Betamax use is to record sports events, and representatives of professional baseball, football, basketball, and hockey testified that they had no objection to the recording of their televised events for home use.[^{Footnote 6} ]

Respondents offered opinion evidence concerning the future impact of the unrestricted sale of VTR's on the commercial value of their copyrights. The District Court found, however, that they had failed to prove any likelihood of future harm from the use of VTR's for time-shifting. 480 F. Supp., at 469.

The District Court's Decision

The lengthy trial of the case in the District Court concerned the private, home use of VTR's for recording programs broadcast on the public airwaves without charge to the viewer.[^{Footnote 7} ] No issue concerning the transfer of tapes to other persons, the use of home-recorded tapes for public performances, or the copying of programs transmitted on pay or cable television systems was raised. See id., at 432-433, 442.

The District Court concluded that noncommercial home use recording of material broadcast over the public airwaves was a fair use of copyrighted works and did not constitute copyright infringement. It emphasized the fact that the material was broadcast free to the public at large, the noncommercial character of the use, and the private character of the activity conducted entirely within the home. Moreover, the court found that the purpose of this use served the public interest in increasing access to television programming, an interest that "is consistent with the First Amendment policy of providing the fullest possible access to information through the public airwaves. Columbia Broadcasting System, Inc. v. Democratic National Committee,  412 U.S. 94, 102 ." Id., at 454.[^{Footnote 8} ] Even when an entire copyrighted work was recorded,

the District Court regarded the copying as fair use "because there is no accompanying reduction in the market for `plaintiff's original work.'" Ibid.

As an independent ground of decision, the District Court also concluded that Sony could not be held liable as a contributory infringer even if the home use of a VTR was considered an infringing use. The District Court noted that Sony had no direct involvement with any Betamax purchasers who recorded copyrighted works off the air. Sony's advertising was silent on the subject of possible copyright infringement, but its instruction booklet contained the following statement:

"Television programs, films, videotapes and other materials may be copyrighted. Unauthorized recording of such material may be contrary to the provisions of the United States copyright laws." Id., at 436.

The District Court assumed that Sony had constructive knowledge of the probability that the Betamax machine would be used to record copyrighted programs, but found that Sony merely sold a "product capable of a variety of uses, some of them allegedly infringing." Id., at 461. It reasoned:

"Selling a staple article of commerce - e. g., a typewriter, a recorder, a camera, a photocopying machine - technically contributes to any infringing use subsequently made thereof, but this kind of `contribution,' if deemed sufficient as a basis for liability, would expand the theory beyond precedent and arguably beyond judicial management.

. . . . .

". . . Commerce would indeed be hampered if manufacturers of staple items were held liable as contributory infringers whenever they `constructively' knew that some purchasers on some occasions would use their product

for a purpose which a court later deemed, as a matter of first impression, to be an infringement." Ibid.

Finally, the District Court discussed the respondents' prayer for injunctive relief, noting that they had asked for an injunction either preventing the future sale of Betamax machines, or requiring that the machines be rendered incapable of recording copyrighted works off the air. The court stated that it had "found no case in which the manufacturers, distributors, retailers and advertisers of the instrument enabling the infringement were sued by the copyright holders," and that the request for relief in this case "is unique." Id., at 465.

It concluded that an injunction was wholly inappropriate because any possible harm to respondents was outweighed by the fact that "the Betamax could still legally be used to record noncopyrighted material or material whose owners consented to the copying. An injunction would deprive the public of the ability to use the Betamax for this noninfringing off-the-air recording." Id., at 468.

The Court of Appeals' Decision

The Court of Appeals reversed the District Court's judgment on respondents' copyright claim. It did not set aside any of the District Court's findings of fact. Rather, it concluded as a matter of law that the home use of a VTR was not a fair use because it was not a "productive use."[^{Footnote 9} ] It therefore held that it was unnecessary for plaintiffs to prove any harm to the potential market for the copyrighted works, but then observed that it seemed clear that the cumulative effect of mass reproduction made possible by VTR's would tend to diminish the potential market for respondents' works. 659 F.2d, at 974.

On the issue of contributory infringement, the Court of Appeals first rejected the analogy to staple articles of commerce such as tape recorders or photocopying machines. It noted that such machines "may have substantial benefit for some purposes" and do not "even remotely raise copyright problems." Id., at 975. VTR's, however, are sold "for the primary purpose of reproducing television programming" and "[v]irtually all" such programming is copyrighted material. Ibid. The Court of Appeals concluded, therefore, that VTR's were not suitable for any substantial noninfringing use even if some copyright owners elect not to enforce their rights.

The Court of Appeals also rejected the District Court's reliance on Sony's lack of knowledge that home use constituted infringement. Assuming that the statutory provisions defining the remedies for infringement applied also to the nonstatutory tort of contributory infringement, the court stated that a defendant's good faith would merely reduce his damages liability but would not excuse the infringing conduct. It held that Sony was chargeable with knowledge of the homeowner's infringing activity because the reproduction of copyrighted materials was either "the most conspicuous use" or "the major use" of the Betamax product. Ibid.

On the matter of relief, the Court of Appeals concluded that "statutory damages may be appropriate" and that the District Court should reconsider its determination that an injunction would not be an appropriate remedy; and, referring to "the analogous photocopying area," suggested that a continuing royalty pursuant to a judicially created compulsory license may very well be an acceptable resolution of the relief issue. Id., at 976.

II

Article I, 8, of the Constitution provides:

"The Congress shall have Power . . . To Promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries."

The monopoly privileges that Congress may authorize are neither unlimited nor primarily designed to provide a special private benefit. Rather, the limited grant is a means by which an important public purpose may be achieved. It is intended to motivate the creative activity of authors and inventors by the provision of a special reward, and to allow the public access to the products of their genius after the limited period of exclusive control has expired.

"The copyright law, like the patent statutes, makes reward to the owner a secondary consideration. In Fox Film Corp. v. Doyal,  286 U.S. 123, 127 , Chief Justice Hughes spoke as follows respecting the copyright monopoly granted by Congress, `The sole interest of the United States and the primary object in conferring the monopoly lie in the general benefits derived by the public from the labors of authors.' It is said that reward to the author or artist serves to induce release to the public of the products of his creative genius." United States v. Paramount Pictures, Inc.,  334 U.S. 131, 158 (1948).

As the text of the Constitution makes plain, it is Congress that has been assigned the task of defining the scope of the limited monopoly that should be granted to authors or to inventors in order to give the public appropriate access to their work product. Because this task involves a difficult balance between the interests of authors and inventors in the control and exploitation of their writings and discoveries on the one hand, and society's competing interest in the free flow of ideas, information, and commerce on the other hand, our patent and copyright statutes have been amended repeatedly.[^{Footnote 10} ]

From its beginning, the law of copyright has developed in response to significant changes in technology.[^{Footnote 11} ] Indeed, it was the invention of a new form of copying equipment - the printing press - that gave rise to the original need for copyright protection.[^{Footnote 12} ] Repeatedly, as new developments have

occurred in this country, it has been the Congress that has fashioned the new rules that new technology made necessary. Thus, long before the enactment of the Copyright Act of 1909, 35 Stat. 1075, it was settled that the protection given to copyrights is wholly statutory. Wheaton v. Peters, 8 Pet. 591, 661-662 (1834). The remedies for infringement "are only those prescribed by Congress." Thompson v. Hubbard,  131 U.S. 123, 151 (1889).

The judiciary's reluctance to expand the protections afforded by the copyright without explicit legislative guidance is a recurring theme. See, e. g., Teleprompter Corp. v. Columbia Broadcasting System, Inc.,  415 U.S. 394 (1974); Fortnightly Corp. v. United Artists Television, Inc.,  392 U.S. 390 (1968); White-Smith Music Publishing Co. v. Apollo Co.,  209 U.S. 1 (1908); Williams & Wilkins Co. v. United States, 203 Ct. Cl. 74,  487 F.2d 1345 (1973), aff'd by an equally divided Court,  420 U.S. 376 (1975). Sound policy, as well as history, supports our consistent deference to Congress when major technological innovations alter the market for copyrighted materials. Congress has the constitutional authority and the institutional ability to accommodate fully the varied permutations of competing interests that are inevitably implicated by such new technology.

In a case like this, in which Congress has not plainly marked our course, we must be circumspect in construing the scope of rights created by a legislative enactment which never contemplated such a calculus of interests. In doing so, we are guided by Justice Stewart's exposition of the correct approach to ambiguities in the law of copyright:

"The limited scope of the copyright holder's statutory monopoly, like the limited copyright duration required by the Constitution, reflects a balance of competing claims upon the public interest: Creative work is to be

encouraged and rewarded, but private motivation must ultimately serve the cause of promoting broad public availability of literature, music, and the other arts. The immediate effect of our copyright law is to secure a fair return for an `author's' creative labor. But the ultimate aim is, by this incentive, to stimulate artistic creativity for the general public good. `The sole interest of the United States and the primary object in conferring the monopoly,' this Court has said, `lie in the general benefits derived by the public from the labors of authors.' Fox Film Corp. v. Doyal,  286 U.S. 123, 127 . See Kendall v. Winsor, 21 How. 322, 327-328; Grant v. Raymond, 6 Pet. 218, 241-242. When technological change has rendered its literal terms ambiguous, the Copyright Act must be construed in light of this basic purpose." Twentieth Century Music Corp. v. Aiken,  422 U.S. 151, 156 (1975) (footnotes omitted).

Copyright protection "subsists . . . in original works of authorship fixed in any tangible medium of expression." 17 U.S.C. 102(a) (1982 ed.). This protection has never accorded the copyright owner complete control over all possible uses of his work.[^{Footnote 13} ] Rather, the Copyright Act grants the

copyright holder "exclusive" rights to use and to authorize the use of his work in five qualified ways, including reproduction of the copyrighted work in copies. 106.[^{Footnote 14} ] All reproductions of the work, however, are not within the exclusive domain of the copyright owner; some are in the public domain. Any individual may reproduce a copyrighted work for a "fair use"; the copyright owner does not possess the exclusive right to such a use. Compare 106 with 107.

"Anyone who violates any of the exclusive rights of the copyright owner," that is, anyone who trespasses into his exclusive domain by using or authorizing the use of the copyrighted work in one of the five ways set forth in the statute, "is an infringer of the copyright." 501(a). Conversely, anyone who is authorized by the copyright owner to use the copyrighted work in a way specified in the statute or who makes a fair use of the work is not an infringer of the copyright with respect to such use.

The Copyright Act provides the owner of a copyright with a potent arsenal of remedies against an infringer of his work, including an injunction to restrain the infringer from violating

his rights, the impoundment and destruction of all reproductions of his work made in violation of his rights, a recovery of his actual damages and any additional profits realized by the infringer or a recovery of statutory damages, and attorney's fees. 502-505.[^{Footnote 15} ]

The two respondents in this case do not seek relief against the Betamax users who have allegedly infringed their copyrights. Moreover, this is not a class action on behalf of all copyright owners who license their works for television broadcast, and respondents have no right to invoke whatever rights other copyright holders may have to bring infringement actions based on Betamax copying of their works.[^{Footnote 16} ] As was made clear by their own evidence, the copying of the respondents' programs represents a small portion of the total use of VTR's. It is, however, the taping of respondents' own copyrighted programs that provides them with standing to charge Sony with contributory infringement. To prevail, they have the burden of proving that users of the Betamax have infringed their copyrights and that Sony should be held responsible for that infringement.

III

The Copyright Act does not expressly render anyone liable for infringement committed by another. In contrast, the

Patent Act expressly brands anyone who "actively induces infringement of a patent" as an infringer, 35 U.S.C. 271(b), and further imposes liability on certain individuals labeled "contributory" infringers, 271(c). The absence of such express language in the copyright statute does not preclude the imposition of liability for copyright infringements on certain parties who have not themselves engaged in the infringing activity.[^{Footnote 17} ] For vicarious liability is imposed in virtually all areas of the law, and the concept of contributory infringement is merely a species of the broader problem of identifying the circumstances in which it is just to hold one individual accountable for the actions of another.

Such circumstances were plainly present in Kalem Co. v. Harper Brothers,  222 U.S. 55 (1911), the copyright decision of this Court on which respondents place their principal reliance. In Kalem, the Court held that the producer of an unauthorized film dramatization of the copyrighted book Ben Hur was liable for his sale of the motion picture to jobbers, who in turn arranged for the commercial exhibition of the film. Justice Holmes, writing for the Court, explained:

"The defendant not only expected but invoked by advertisement the use of its films for dramatic reproduction

of the story. That was the most conspicuous purpose for which they could be used, and the one for which especially they were made. If the defendant did not contribute to the infringement it is impossible to do so except by taking part in the final act. It is liable on principles recognized in every part of the law." Id., at 62-63.

The use for which the item sold in Kalem had been "especially" made was, of course, to display the performance that had already been recorded upon it. The producer had personally appropriated the copyright owner's protected work and, as the owner of the tangible medium of expression upon which the protected work was recorded, authorized that use by his sale of the film to jobbers. But that use of the film was not his to authorize: the copyright owner possessed the exclusive right to authorize public performances of his work. Further, the producer personally advertised the unauthorized public performances, dispelling any possible doubt as to the use of the film which he had authorized.

Respondents argue that Kalem stands for the proposition that supplying the "means" to accomplish an infringing activity and encouraging that activity through advertisement are sufficient to establish liability for copyright infringement. This argument rests on a gross generalization that cannot withstand scrutiny. The producer in Kalem did not merely provide the "means" to accomplish an infringing activity; the producer supplied the work itself, albeit in a new medium of expression. Sony in the instant case does not supply Betamax consumers with respondents' works; respondents do. Sony supplies a piece of equipment that is generally capable of copying the entire range of programs that may be televised: those that are uncopyrighted, those that are copyrighted but may be copied without objection from the copyright holder, and those that the copyright holder would prefer not to have copied. The Betamax can be used to

make authorized or unauthorized uses of copyrighted works, but the range of its potential use is much broader than the particular infringing use of the film Ben Hur involved in Kalem. Kalem does not support respondents' novel theory of liability.

Justice Holmes stated that the producer had "contributed" to the infringement of the copyright, and the label "contributory infringement" has been applied in a number of lower court copyright cases involving an ongoing relationship between the direct infringer and the contributory infringer at the time the infringing conduct occurred. In such cases, as in other situations in which the imposition of vicarious liability is manifestly just, the "contributory" infringer was in a position to control the use of copyrighted works by others and had authorized the use without permission from the copyright owner.[^{Footnote 18} ] This case, however, plainly does not fall

in that category. The only contact between Sony and the users of the Betamax that is disclosed by this record occurred at the moment of sale. The District Court expressly found that "no employee of Sony, Sonam or DDBI had either direct involvement with the allegedly infringing activity or direct contact with purchasers of Betamax who recorded copyrighted works off-the-air." 480 F. Supp., at 460. And it further found that "there was no evidence that any of the copies made by Griffiths or the other individual witnesses in this suit were influenced or encouraged by [Sony's] advertisements." Ibid.

If vicarious liability is to be imposed on Sony in this case, it must rest on the fact that it has sold equipment with constructive knowledge of the fact that its customers may use that equipment to make unauthorized copies of copyrighted material. There is no precedent in the law of copyright for the imposition of vicarious liability on such a theory. The closest analogy is provided by the patent law cases to which it is appropriate to refer because of the historic kinship between patent law and copyright law.[^{Footnote 19} ]

In the Patent Act both the concept of infringement and the concept of contributory infringement are expressly defined by statute.[^{Footnote 20} ] The prohibition against contributory infringement is confined to the knowing sale of a component especially made for use in connection with a particular patent. There is no suggestion in the statute that one patentee may object to the sale of a product that might be used in connection with other patents. Moreover, the Act expressly provides that the sale of a "staple article or commodity of commerce suitable for substantial noninfringing use" is not contributory infringement. 35 U.S.C. 271(c).

When a charge of contributory infringement is predicated entirely on the sale of an article of commerce that is used by the purchaser to infringe a patent, the public interest in access to that article of commerce is necessarily implicated. A

finding of contributory infringement does not, of course, remove the article from the market altogether; it does, however, give the patentee effective control over the sale of that item. Indeed, a finding of contributory infringement is normally the functional equivalent of holding that the disputed article is within the monopoly granted to the patentee.[^{Footnote 21} ]

For that reason, in contributory infringement cases arising under the patent laws the Court has always recognized the critical importance of not allowing the patentee to extend his monopoly beyond the limits of his specific grant. These cases deny the patentee any right to control the distribution of unpatented articles unless they are "unsuited for any commercial noninfringing use." Dawson Chemical Co. v. Rohm & Hass Co.,  448 U.S. 176, 198 (1980). Unless a commodity "has no use except through practice of the patented method," id., at 199, the patentee has no right to claim that its distribution constitutes contributory infringement. "To form the basis for contributory infringement the item must almost be uniquely suited as a component of the patented invention." P. Rosenberg, Patent Law Fundamentals 17.022. (2d ed. 1982). "[A] sale of an article which though adapted to an infringing use is also adapted to other and lawful uses, is not enough to make the seller a contributory infringer. Such a rule would block the wheels of commerce." Henry v. A. B. Dick Co.,  224 U.S. 1, 48 (1912), overruled on other grounds,

Motion Picture Patents Co. v. Universal Film Mfg. Co.,  243 U.S. 502, 517 (1917).

We recognize there are substantial differences between the patent and copyright laws. But in both areas the contributory infringement doctrine is grounded on the recognition that adequate protection of a monopoly may require the courts to look beyond actual duplication of a device or publication to the products or activities that make such duplication possible. The staple article of commerce doctrine must strike a balance between a copyright holder's legitimate demand for effective - not merely symbolic - protection of the statutory monopoly, and the rights of others freely to engage in substantially unrelated areas of commerce. Accordingly, the sale of copying equipment, like the sale of other articles of commerce, does not constitute contributory infringement if the product is widely used for legitimate, unobjectionable purposes. Indeed, it need merely be capable of substantial noninfringing uses.

IV

The question is thus whether the Betamax is capable of commercially significant noninfringing uses. In order to resolve that question, we need not explore all the different potential uses of the machine and determine whether or not they would constitute infringement. Rather, we need only consider whether on the basis of the facts as found by the District Court a significant number of them would be noninfringing. Moreover, in order to resolve this case we need not give precise content to the question of how much use is commercially significant. For one potential use of the Betamax plainly satisfies this standard, however it is understood: private, noncommercial time-shifting in the home. It does so both (A) because respondents have no right to prevent other copyright holders from authorizing it for their programs, and (B) because the District Court's factual findings reveal that even the unauthorized home time-shifting of respondents' programs is legitimate fair use.

A.

Authorized Time-Shifting

Each of the respondents owns a large inventory of valuable copyrights, but in the total spectrum of television programming their combined market share is small. The exact percentage is not specified, but it is well below 10%.[^{Footnote 22} ] If they were to prevail, the outcome of this litigation would have a significant impact on both the producers and the viewers of the remaining 90% of the programming in the Nation. No doubt, many other producers share respondents' concern about the possible consequences of unrestricted copying. Nevertheless the findings of the District Court make it clear that time-shifting may enlarge the total viewing audience and that many producers are willing to allow private time-shifting to continue, at least for an experimental time period.[^{Footnote 23} ]

The District Court found:

"Even if it were deemed that home-use recording of copyrighted material constituted infringement, the Betamax could still legally be used to record noncopyrighted material or material whose owners consented to the copying. An injunction would deprive the public of the ability to use the Betamax for this noninfringing off-the-air recording.

"Defendants introduced considerable testimony at trial about the potential for such copying of sports, religi