cassette bug help

[tubesrawsom]

about 3 year ago i had a great cassette recording and now when i want to play it back every two seconds the volume fades down like 20 dbs and its really annoying cuz i wanna throw it on cd but the problem is permitting me doing tht
help

 

[MadAudio]

You may have gotten the cassette near a magnet, and it has partially erased the tape. Not much you can do about that.