On Mon, 29 Oct 2012, geneb wrote:
Some copy protection methods on the Commodore 1541
drive knocked the head
repeatedly against a hard stop - over time this would knock the head out
of alignment.
Ah HA!
BREAK ITSELF under software command is something that is harder to do on a
PC drive. (Some drives are harder to break than some others! It was
relatively easy to get the cam follower out of place on an SA400/Apple
Disk][ )