Re: I. AM. OUTRAGED!
SATA - IDE adaptors at about €6 work for HDDs, CD-ROMs and DVD drives.
Far more compatible and faster than a USB adaptor.
I do have one older Mobo with Linux and a floppy port. The 5.25", 3.5" and 3" drives do work and using a library, even CP/M formats including Amstrad. I compiled the Joyce Emulator too, which was a bit of work to get all the aged dependencies. But it works with real 3" drives or files emulating drives.
Warning: the 3" drives have the +5V and +12V reversed, but I knew that from using a 3.5" drive in the PCW8256 (with RAM upgraded to 512).
You can use 8" or 3" drives on a regular floppy port just with a dumb cable adaptor. But Apple II 100K 5.25" drives won't work on anything except an Apple II; proprietary.
USB Floppy adaptor/drive ONLY works for regular FAT12 MSDOS discs. No good for CP/M, Amstrad or Amiga.
I'm not sure if Amiga discs can be read on the setup and I have an idea the Hard Sectored discs (a hole per sector instead of just one) might not work. ACT 1/ Victor 9000 5.25" floppies won't work either as they are variable speed to increase capacity.
Periodically backups need transferred to new mediums. Writeable CDs, DVDs and Flash can fade. Other formats of tape, MO disc, floppy, HDD etc need interfaces and/or drives unavailable.
I THINK I've everything copied off old IDE drives lying around and I did copy the old MFM drives content on XTs and ATs to IDE on an AT clone. (5 M, 10 M and 20M byte drives).