DVD has widespread support from all major electronics companies, all major computer hardware companies, and about half of the major movie and music studios, which is unprecedented and says much for its chances of success. This is a standard for a type of optical media that will use the UDF file system. Capacities for single sided is 4.7GB's for single layer and 8.5GB's for dual-layer disks. Capacities for double sided is 9.4GB's for single layer and 17GB's for dual-layer disks. A collection of organizations that contributed to the DVD definition.
Data can be record and erased many times.
DVD RAM will use a technology based on Phase Change technology. Same write once concepts as CD-R but with the benefits of DVD media. Using the same techonolgy for DVD, this format is desiged to be used to store movies on a DVD medium. Most DVD drives have the ability to read DVD-Video. A predecessor to the ISO 13346 Specification.