A write-once format that is compatible with many existing DVD Players, Recorders and DVD-ROM drives. Can only be used in DVD Recorders and Burners that support DVD-R recording or multi-format recording (drives that record “plus” or “dash”). Holds 4.7GB of data or video. Typically, it can hold 2 hours of MPEG-2 video on standard (SP) speed setting.
DVD-RW is the re-writable version of DVD-R. It allows for approximately 1,000 re-writes before it is used up. In general, DVD-RW discs are slightly less compatible than DVD-R. Can only be used in DVD Recorders and Burners that support DVD-RW recording or multi-format recording (drives that record “plus” or “dash”). Also holds 4.7GB of data or video.
Another write-once recordable DVD format developed seperate from DVD-R. These discs are basically the same as DVD-R discs. They hold 4.7GB of data or video and are compatible with most DVD Players and DVD-ROM drives. They can only be used in DVD Recorders and Burners that support DVD+R or multi-format recorders.
The re-writable version of DVD+R. It can record approximately 1,000 times. They also hold 4.7GB of data or video and must be used in DVD+RW compatible Recorders and Burners or multi-format recorders.
DVD-RAM comes in two varieties and storage capacities. These discs come in both cartridge and non-cartridge varieties and come single-sided or double-sided. Offered by only a few manufacturers (Panasonic, Toshiba and a few other minor ones), DVD-RAM is useful if used like a hard drive. Because it supports and incredible 100,000 re-writes, you can use the disc to record TV shows, view them and then re-write over them many times. Single sided discs hold 4.7GB, double-sided 9.4GB, allowing for longer recording times. DVD-RAM is the least compatible of the 5 recording formats, and is typically used for recording and playback in the same Set Top DVD Recorder.
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