Rumor has it that M H Stein may have mentioned these words: Depends... ;-) The DVI wants a "standard" 34-pin interface MFM SSDD 40-track drive -- the original CoCo drives were 35-track SSDD drives. If you put one of *these* drives in the DVI, you will most surely hear bad clunking noises when you try to format your first disk. The CoCo slimline drives came in 3 flavors: The FD-500, which was 35-track SSDD (bad) the FD-501 which was 40 track SSDD (which is OK), and the FD-502 which was 40-track DSDD (which side 1 will go unused, but should work fine). I have a DVI as well, but I don't have a boot disk or interface cable for my Tandy 200... so I have yet to use it. Hope this helps! Roger "Merch" Merchberger -- Roger "Merch" Merchberger -- sysadmin, Iceberg Computers zmerch(a)30below.com What do you do when Life gives you lemons, and you don't *like* lemonade?????????????