Bob wrote:
ZIP drives, and Compaq ATA drives will actually modify
the data in some
sectors, there is indeed firmware control over the data written to disk.
I've used "IDE" (ATAPI) ZIP drives extensively on PDP-11 systems and on
PCs running Linux, and I've never encountered a case where the drive wrote
anything to disk other than exactly what it was told to write.
Possibly the Iomega Windows drivers might interfere, but I never use
those, since they won't run on either Linux or the PDP-11.
Eric