An early version of AC/DC’s “Thunderstruck” and Metallica performing with Marianne Faithfull could be destroyed if not claimed. The recordings are among a slew of tapes from the old Windmill Lane recording studios near Dublin, still looking for a home. Windmill Lane is famous for its use by U2. The Rolling Stones, Status Quo, Kate Bush, R.E.M and Elvis Costello have also recorded there.

The Irish Times reports more than 1,000 tapes, weighing a ton, which are filling up the attic in the new Windmill Lane studios in Ringsend, Dublin, are waiting to be reclaimed by the artists or recording companies that recorded them.

The two-inch multitrack tapes date from the days before digital technology took over; the new studio plans to begin destroying the tapes in May if they remain unclaimed.