DVD+RW (Digital Versatile Disk Rewritable) is similar to a DVD+R only it can be rerecorded and rewritten on (as long as the disk has had all data removed first) they are only available as a single sided disk but can still hold 4.7GB of data. They are the perfect choice for anyone wishing to make backups of data and they can be written onto using a burner supporting DVD+RWs.