I use Adaptec software and there is an option in there to do just what you require - - though you do have to format your discs first which cuts down their size from 650mb to maybe a little over 500mb. You can use CD or CDRW - - with the latter your are able to delete , the former just to write til the disc is full. It does act as a floppy disc drive, or even a hard disc drive .
Read about this in the PC Advisor April edition No 92, p 161. There's a utility on the Nero Burning ROM called InCD. But there are several warnings that "an error during writing could make the whole contents of the disk inaccessible" with no way of retrieval. Don't use it for important files.
If you do manage to get this to work, don't entrust anything valuable to be stored on the CDRW.
CDRWs have an annoying habit of becoming unreadable for multiple reasons, none of which are good ones.
I do not let CDRW disks on to my premises. You would be wise in my opinion not to let them on to yours either. CDRs are so cheap now, it's hardly worth while relying on a CDRW which may re-writable but if it's unreadable, it's not much use.
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