just stumbled over this thread because i was trying to find the full "Towson" tape that has been mentioned here. as others have pointed out there is a boot called "Will The Real Bruce Springsteen Please Stand Up?" that features 8 songs from Milwaukee (1977-02-22) and 2 songs from Towson (1977-03-13) in great quality (they sound almost like soundboards imo with vocals that are very upfront and very little audience noise).
one of those 2 songs is Don't Look Back which might be the definite live version of this song (when it comes to his vocals, the sound quality and intensity it's the best imho). anyway here's my question has the full Towson concert ever surfaced? i know there are 2 versions uploaded by mjk5510 and Ivannf, both don't sound nearly as good unfortunately (and are probably from different sources).
thanks in advance for your help