Question: what is the difference between a cd-rom and a cd-rw?
Answer: A Compact Disc Read Only Memory (CD-ROM) is a read-only disc. ... A Compact Disc Re-Writable (CD-RW) is an erasable disc that can be reused. The data on a CD-RW disc can be erased and recorded over numerous times. CD-RW media may not be readable outside of the drive it was created in.