My computer comes with a CD-R. What is it, and how does that differ from a CD-RW?
A CD-R (CD recordable) is a drive that allows you to record onto read-only discs, almost identical to regular CDs. Once you record a CD-R disc, it cannot be erased or re-recorded. You can play CD-R discs in most regular CD players, so you can make your own music CDs. A CD-RW (CD rewritable) is a drive that allows you to record CD-RW discs that can be re-recorded with new material over and over again. You can also make CD-R discs with the same drive, which is important, because most regular CD players cannot read CD-RW discs.
