DVD+RW recordable blank media in jewel case packs can be rewritten reliably up to 1,000 times and can store up to 4.7GB of data, approximately 120 minutes of video. Transfer home movies from VHS or 8mm cassettes, backup computer hard drives and large files. Store at least 6.5 times more data than on a CD-R/RW. 4X discs are backward compatible with a firmware upgrade. DVD+RWs are designed for DVD+RW/+R recorders and drives.