philscomputerlab wrote:What are the going rates for ZIP drives? What drive would you go for? 100, 250 or 750? USB on the desktop and parallel on the retro PC?
For the price just check ebay, in Germany they often seem to go for minimum bid.
Re capacity: I'd look what's available, both drives (different connections) and disks. It's probably best to use same capacity drives and disks since there are some restrictions in compatibility.
Definitely read the Wikipedia article on the Zip drive. Some quotes:
"Higher-capacity Zip disks must be used in a drive with at least the same capacity ability. Higher-capacity drives can read lower-capacity media. The 250 MB drive writes much more slowly to 100 MB disks than the 100 MB drive, and the Iomega software is unable to perform a "long" (thorough) format on a 100 MB disk. ... The 750 MB drive cannot write to 100 MB disks but can read existing disks."
"Zip drives are still used today by retro-computing enthusiasts as a means to transfer large amounts (compared to the retro hardware) of data between modern and older computer systems. The Commodore-Amiga, Atari ST, Apple II, and "old world" Macintosh communities often use drives with the SCSI interface prevalent on those platforms."
Speed is not too high (for the 100MB version, don't know about the later ones) so even USB 1.1 is not a bottleneck. Parallel port can be a bottleneck depending on features (ECP/EPP), if you don't have too many systems you want to use a Zip drive with you might prefer the internal ATAPI ones. There is no need to use a Zip drive on a machine with USB today.
If you already established procedures for data transfer to your older boxes there is no real need to try Zip drives as well.
LS-120 is also nice regarding its feature to use normal 1.44MB floppies (IIRC faster than normal floppy drives and better error correction/tolerance), but it seems that external versions are less common, I don't know if there even is a USB version.