There are several formats that already exist: DVD-R, DVD-R and DVD-RAM, but of these only the DVD+R format provides full compatibility with existing DVD Video players and DVD-ROM drives. DVD-R is supported by a group of seven companies: Verbatim / MCC, Philips, HP, Ricoh, Sony, Thomson and Yamaha. Always on the forefront of technology, Verbatim have DVD-R media to support the initial PC and consumer video hardware launches With conventional writable media, the recording layer does not deteriorates when writing, meaning no decrease in quality. . SERL also enables this media to enjoy excellent archival stability and high-speed recording. This means users can enjoy perfect, high-speed data storage every time.