I have a large collection of bootleg cassette tapes and a Nak Dragon to play them on.
A tape of a live concert directly fed from the mics to the deck, even on a cassette, can be really something. It's a form of "master" recording, not a copy, like all LP's and almost all RtoR, so they have a quality of "aliveness" that is not there even on "live concert" LP's. Don't knock it if you haven't tried it.
The specs of cassettes are poor, of course, compared to LP's, RtoR or CD/SACD, and they deteriorate with time. They can still hold some fantastic music.
A tape of a live concert directly fed from the mics to the deck, even on a cassette, can be really something. It's a form of "master" recording, not a copy, like all LP's and almost all RtoR, so they have a quality of "aliveness" that is not there even on "live concert" LP's. Don't knock it if you haven't tried it.
The specs of cassettes are poor, of course, compared to LP's, RtoR or CD/SACD, and they deteriorate with time. They can still hold some fantastic music.