I want to store documents as well as move them from my old computer to my new PC. There is a CD-R and CC-RW. As far as I know the RW is the better of the two, the documents can be updated or deleted? Am I correct? I need to store/move documents on Microsoft Word and my Noteworthy Composer music scores (not the audio, but the "document" with the measures and music notation). I hope I have explained this properly. Thank you.