It's inefficient to keeop an av on CDR updated for field work (this is
where bootable or reachable USB stick is better).
It's a lot less efficient to use floppies in my experience. The disks
cost more than CDRs and floppies might as well be one-time use only
since the die so often. These days I typically find at least one out
of every 3 floppies I try fails.
CD-ROM's also not a great place to do BIOS flash from, if this changes
the status of the UIDE interface.
I'd MUCH rather do a BIOS flash from a CD-ROM than from a floppy. FAR
less chance of getting a corrupt image due to a bad floppy disk.
Besides, no one uses the BIOS for IDE interface after bootstrapping
anyway, that's why almost all BIOS updates now can be done in Windows
(not always ideal if you have Linux box).
If the boot HD's on a fancy interface that needs special drivers,
guess what interface the CD-ROM's likely to be on too?
Most likely plain old IDE. The percentage of CD-ROM drives that are
hanging off some obscure interface is pretty darn low. I know I was
definitely in the minority when I had two CD-ROMs hanging off a
non-bootable SCSI drive about a year ago. Fortunately I have now
replaced one of those drives with an IDE one and the other will
probably go when I can afford the $75 or so for a new DVD-RW drive.
Prices here are dropping, with regular specials, but nothing as cheaop
as that. Best is typically 128M at R 150 or so, which is about $25.
USB drives are the sort of thing that you can often get really good
specials on and more than once I've seen them thrown in as a "free"
gift along with another purchase (ie printers, monitors, etc.).
As I say; it's in transition. At present I still find 1.44M useful
for various maintenance tasks, including av, and obviously so when
dealing with older PCs (here, we see right back to DOS 3.3)
Sure, archaic PCs might still require floppies, but modern ones? By
default many (most?) new systems no longer ship with floppies, and to
that I say "good riddance!" Probably at least 99.9% of all new
systems have bootable CD-ROM drives that are FAR more useful than
floppies.
Any time I still need to use a floppy disk these days I always make
sure to have AT LEAST two copies of the same disk because the chance
of one failing is so high. That's something I almost never have to
worry about with CDRs (sure, they do die, but at only a very tiny
fraction of how often floppies die).
I've still got a floppy drive in my system, but I think I've used it
only once (to update a BIOS) since getting an IDE CD-RW drive almost a
year ago. If I need to update the BIOS on my new boards (one of which
does not have a floppy drive plugged in to it), I'll probably just
grab a bootable CDR instead though. Cheaper and more reliable.