"Michael Ware" wrote in message
...

What types of cassettes are you using, exactly? I remember an issue when
tape decks were more widely used, that if you used the 'long-play' tapes
(90
minute or 120 minute) tapes you could have slippage and handling problems,
because the tape medium was physically thinner.

Most of mine are 90 minutes. I've always avoided the 120-minute ones.