I use both type of cd to back up files, using the 'Send to' instruction. Normally I have no problem with this, but recently I have attempted to copy files to a disk and get a message saying that it is full, although I know that there is adequate space. When I check the 'CD details', that also indicates there is not space available! With cd-rw I know I can delete all items, but I am reluctant to destroy a cd-r when I know there is often about two-thirds of the disk unused.
Thank you for your contributions. I use a simple "Save as ........." when copying files to the CD's. I do not use any Burning program. What puzzles me is that I regularly copy files to disks without any problems and them, without any change to the method I use, the disk shows as full or, it appears, becomes finalized. The obvious solution would seem to be using only CD-RW disks, then when this happens, at least I can delete the files and start again. Thanks, again, anyway.