I know it's a rather silly question and I'm sorry I have to ask it. I want to save files (documents, powerpoint presentations, etc.) to a CDRW for use (to access and change, etc.)in other computers and I seem to be having a problem. I was able to burn (I have Nero and Roxio) to a CDRW but it was a read only file and wasn't able to edit it and/or resave over it. How can I do this? Thank you very much!