Question: what is the difference between cd rom cdr and cdrw?
Answer: The main difference between these two is reusability as a CDR can only be written to once, although you don't have to write to the entire disc at once. Once it is full, you can only read data from it. On the other hand, a CDRW is rewritable. ... The main advantage of the CDR is compatibility with older CD-ROMS.