LawMeme has a nice side-by-side comparison of last week’s oral argument in the MGM v. Grokster case and the 1983 Supreme Court oral arguments in the Sony v. Betamax case. Their conclusion: the arguments being used against Grokster are the same ones that lost when the content industry tried to kill the VCR 20 years ago.
Correction: As a commenter mentioned, the case was Sony v. Universal not Sony v. Betamax — Sony made Betamax, & was sued by Universal Studios.