If you are in packet mode, then it should be possible to change the properties on the disc.
If you have an open multisession, your software may be able to exclude some files from the next session.
If you have copied the files back to HD from CD/DVD, they will be read only, and you'll have to change the attributes - better operating systems than Windows are able to to present normal files on a write protected media, but Windows represents the files as write protected, so the are copied with those attributes.
I think that covers all the bases?