Not that there are not lots of copies around. But these are the original master recordings.
Almost of all of Buddy Holly’s masters were lost, as were most of John Coltrane’s masters in the Impulse Records collection. The fire also claimed numerous hit singles, likely including Bill Haley and His Comets’ “Rock Around the Clock,” Etta James’s “At Last” and the Kingsmen’s “Louie Louie.”
The list of artists affected spans decades of popular music. It includes recordings by Ray Charles, B.B. King, the Four Tops, Joan Baez, Neil Diamond, Sonny and Cher, Joni Mitchell, Cat Stevens, Gladys Knight and the Pips, Al Green, Elton John, Eric Clapton, Jimmy Buffett, the Eagles, Aerosmith, Rufus and Chaka Khan, Barry White, Patti LaBelle, Tom Petty and the Heartbreakers, the Police, Sting, Steve Earle, R.E.M., Janet Jackson, Guns N’ Roses, Mary J. Blige, No Doubt, Nine Inch Nails, Snoop Dogg, Nirvana, Beck, Sheryl Crow, Tupac Shakur, Eminem, 50 Cent and the Roots.
ref. - https://www.nytimes.com/2019/06/11/maga ... dings.html