(CD-Recordable) A writable CD technology using a type of compact disc that
can be recorded, but not erased (CD-Rs are "write once" discs). CD-R discs
are used to master CD-ROMs, to back up data and to make copies of data for
distribution. "Burning" a CD-R requires a CD-R drive, CD-RW drive or a combo
CD/DVD drive. CD-R discs can be read on most every type of CD drive,
including older CD-ROM units.