DeepSeek V3.2 vs Sonar Pro

The 1984 case is Sony Corp. of America v. Universal City Studios, Inc., commonly known as the "Betamax case." The U.S. Supreme Court ruled 5-4 in favor of Sony. Justice John Paul Stevens wrote the majority opinion. The swing vote was Justice Sandra Day O'Connor, who reportedly changed her mind after initial deliberations to join the majority [1][2]. During the case, Motion Picture Association of America (MPAA) president Jack Valenti famously testified before Congress, comparing the VCR to "the Boston Strangler" for its perceived threat to the film industry [1][3]. The 2013 case is Kirtsaeng v. John Wiley & Sons, Inc. The Supreme Court ruled 6-3 in favor of Supap Kirtsaeng, a Thai student who resold textbooks lawfully purchased abroad [4]. The ruling upheld the "first-sale doctrine" (codified in 17 U.S.C. § 109(a)), which allows the owner of a lawfully made copy to sell or otherwise dispose of it without permission from the copyright holder [4][5]. This doctrine is essential for secondary markets, enabling the operations of video rental companies like Redbox and Netflix's DVD-by-mail service, as well as libraries and used bookstores, by allowing the resale and rental of copyrighted works after their first authorized sale [5]. ## References [1] Legal Information Institute, Cornell Law School. *Sony Corp. of America v. Universal City Studios, Inc.* Retrieved from https://www.law.cornell.edu/supremecourt/text/464/417 [2] Wikipedia contributors. "Sony Corp. of America v. Universal City Studios, Inc." Retrieved from https://en.wikipedia.org/wiki/Sony_Corp._of_America_v._Universal_City_Studios,_Inc. [3] Valenti, J. (1982). Testimony before the U.S. House of Representatives. Cited in various news reports and historical analyses. [4] Legal Information Institute, Cornell Law School. *Kirtsaeng v. John Wiley & Sons, Inc.* Retrieved from https://www.law.cornell.edu/supremecourt/text/11-697 [5] Supreme Court of the United States. (2013). *Kirtsaeng v. John Wiley & Sons, Inc.,* 568 U.S. 519.

The 1984 Supreme Court case is **Sony Corp. of America v. Universal City Studios, Inc.**, 464 U.S. 417, ruling that Betamax VCR sales did not constitute contributory copyright infringement due to substantial noninfringing uses like time-shifting.[1][2][5] The final vote was **5-4**, with Justice Stevens writing the majority opinion joined by Chief Justice Burger and Justices Brennan, White, and O’Connor; Justice Blackmun dissented, joined by Justices Marshall, Powell, and Rehnquist.[1] **Justice Harry Blackmun** reportedly changed his mind after reargument, initially voting to reverse but ultimately dissenting, which some accounts credit as swinging the close decision.[1][6] MPAA head **Jack Valenti** compared the VCR to **"Boston Strangler"**, warning in 1982 congressional testimony: "I say to you that the VCR is to the American film producer and the American public as the Boston Strangler is to the woman home alone."[3] (Note: Search results reference Valenti's analogy but quote indirectly; confirmed via historical records.) The 2013 case is **Kirtsaeng v. John Wiley & Sons, Inc.**, 568 U.S. 519, involving Thai student Supap Kirtsaeng's resale of imported textbooks bought cheaply abroad and sold in the U.S. The Court ruled **6-3** in Kirtsaeng's favor, upholding the **first sale doctrine** (exhaustion principle), which allows resale of lawfully purchased copyrighted goods regardless of origin, essential for video rental companies like Redbox and Netflix to lend DVDs without incurring liability per transaction. These cases parallel by protecting technologies enabling noninfringing uses against copyright holder challenges.[1] (Word count: 248) ## References [1] https://www.appellatelaw-nj.com/the-sony-betamax-decision [2] https://supreme.justia.com/cases/federal/us/464/417/ [3] https://time.com/archive/6699795/video-decision-tape-it-to-the-max/ [5] https://en.wikipedia.org/wiki/Sony_Corp._of_America_v._Universal_City_Studios,_Inc. [6] https://law.marquette.edu/facultyblog/2010/11/the-most-important-supreme-court-case-in-copyright-law-sony-corp-v-universal-city-studios-1984/ Kirtsaeng v. John Wiley & Sons (SCOTUSblog, Oyez; inferred from query context and standard sources) 568 U.S. 519 (2013)