No particular order here but these are my favorites:
Iron Maiden - Rock In Rio
Ozzy Osbourne - (Randy Rhoades) Tribute
Black Sabbath - Live At The Hammersmith Odeon
Slipknot - Disasterpieces (DVD Only)
Alkaline Trio - Live At Reading (Fan Club Exclusive)
Nirvana - MTV Unplugged In New York
Metallica - S&M
Me First And The Gimme Gimmes - Ruin Jonny's Bar Mitzvah
Simon & Garfunkel - Live In Central Park
Johnny Cash - At San Quentin