the CD-Rom, ok so the CD-Rom drive was kind of around just when Commodore when bust and there is a bit of support for it in 3.1, and so of course their is the cdtv and cd32 but no official Cd-Rom drive for A4000 or A1200 machine and I for one dont think Amiga in the desktop line could of survived with out the Cd-Rom drive, so I say thanks to all the companies that made it happen.