Amazon.comRidata DVD+RW media is known for excellent performance and stable, reliable data writing. This spindle features 50 DVD+RW rewriteable discs that are compatible with 4x speed recordings. Designed for personal or professional use, Ridata's DVD+RW discs utilize a high-performance phase change material which is ideal for mass storage and long archival life. Each disc holds up to 4.7 GB of data--which can store up to 120 minutes of high-quality video, or your collection of high-resolution photos or digital audio files. What is DVD+R/RW? DVD+R/RW is an erasable format based on CD-RW technology that became available in late 2001. It is supported by Philips, Sony, Hewlett-Packard, Dell, Ricoh, Yamaha, and others, though it is not supported by the DVD Forum. DVD+RW drives read DVD-ROMs and CDs, and usually read DVD-Rs and DVD-RWs, but do not read or write DVD-RAM discs. DVD+RW drives also write CD-Rs and CD-RWs. The DVD+RW format uses phase-change media with a high-frequency wobbled groove that allows it to eliminate linking sectors. This, plus the option of no defect management, allows DVD+RW discs to be written in a way that is compatible with many existing DVD readers. DVD+R/RW discs hold 4.7 gigabytes (GB) per side and are readable in many existing DVD-Video players and DVD-ROM drives. About the Company Ritek, the maker of Ridata media, is the world's largest optical media manufacturer. The name may be new to you, but if you've purchased blank media in the past, you've likely already used a Ritek product. For years, Ritek has been redefining the optical storage market around the world, and its name is synonymous with innovation, quality and unparalleled consistency. The new Ridata brand brings you top quality at an amazing value.