[Mike Van Veen] “I don’t know if it was LP, but does that matter for playback? And why would it play in one camera, but not two others?”
You can tell if its LP by the lenth, if they are approx 60min length on 60min(up to 63 depending on the tapes) they are regular, if 80min long on 60min tapes they are LP, reason is DV LP tapes are notorious for playback problems when played back on decks or cams other that the original and sometimes problems even on the original. Also the original cam could have alignment problems which could cause it to act like a LP tape, I would see if I could borrow or rent a sony DV camera or deck and try to playback on it, sony’s have a very good servo system that sometimes can keep a bad tape on track.