Hi Frank,
You may want to try 'CDRTape' - it makes any disc location you nominate
look like a tape drive to a NT4 system - you can then use NT4 Backup to
back files or a whole system up to the disc :-)
Get it here:
ftp://sac-ftp.externet.hu/.lib/disk5/freepc/WINNT/SYSTEM/cdrtape.zip
Alternately - an application like 'SyncBack' from
http://www.2brightsparks.com may do what you want.
Hope this helps,
Calvin.