This tape consists of two segments, the first running for 35:02, from the introduction of the Dead's "last set" through the first 2:21 of New Potato Caboose, and the second starting a couple minutes in to Alligator and running through the end of the set in 32:14.
At 0:41 of New Potato Caboose the strength of the signal falls away severely in both channels, past all recovery and continues in this state for 14:03 before resuming proper strength and continuing for 19:54 to the end of the tape.
Originally the source contained both a complete version, including the 14:03 of bad signal, and an edited version, with this segment removed. Since then a third version has circulated that contains a digitally modified version 14:03 where the music is at least audible. This is the "edited" version.