not with xp you can't... see my message how do I disable write-back cache
on removable drives.
I use nero, this allows me to add to a R cd, unfortunately xp refuses to
write immediately, so I spit the cd out re-insert it and the files have not
been copied.
"nijuuf" <(E-Mail Removed)> wrote in message
news

5977647-43FD-45BB-9904-(E-Mail Removed)...
> I am using CD-R blanks and I have Windows XP-Pro. After copying some data
to a CD (but not using all of the available space), Windows shows the CD as
full and will not allow me to add additional data. This is wasting caluable
CD-R disk space. How can I make the CD writeable so that I can add to it?
Thanks!