Led Zeppelin Pb is a one disc title on the Boogie Mama label. This contains the well known soundboard recording from the March 21st, 1970 Vancouver show. Supplimenting the soundboard is the audience recording fragment that surfaced earlier in the year from the same show. This is so far the only silver pressed edition of the new found tape and, given its sound quality, will be the definitive version.
AC/DC First Time In Boston is on the Refine Masters label. This is a one disc release with the FM broadcast from August, 1978. Both the Zeppelin and AC/DC are packaged in gorgeous tri-fold gatefold sleeves.