Noun
DVD-RW (plural DVD-RWs)
Initialism of Digital Versatile Disc - read/writable: a form of digital media that is similar to a CD, but has far greater capacity and can be written to more than once.
Added sparing tables for defect management on rewritable media such as CD-RW, and DVD-RW and DVD+RW. Source: Internet
Spared (RW) build Rewriteable media such as DVD-RW and CD-RW have fewer limitations than DVD-R and CD-R media. Source: Internet