Welcome dennison_b,

Keep those wheels in you brain turning, you may
come up with a great idea some day.
Sorry, just not yet.
KNOPPIX is a great distro for creative ideas.

Linux can write to a RWCD but up until
recently -- only to the whole disk at once.
Writing to part of a disk and changing it is
call packet writing. I am no expert but this is
just starting to be possible in the newest Linux
kernel.

The best solution is the key, thumb, stick usb
drives starting at $30us. (It would be nice if they
had an official generic name.)

But since they are still expensive compared to a
CDRW and can be lost I agree with your idea.
I have been working on a KNOPPIX add-on project
called burn_home.
http://www.knoppix.net/docs/index.php/BurnHome
I have not updated the scripts recently and am making a
lot of changes. I am now working on changes to
to allow encryption. So this is very much a work
in progress.


Best Wishes
paradocs