The newest of the DVD formats extends usage for professionals and
consumers alike with functionality and compatibility across the board.
DVD+R has all the benefits of the DVD+RW in a write-once version.
It is designed for long term archiving of images, video, data, MP3 files,
and backups. It uses CAV (video) and CLV (data) recording methods
which enables developers and consumers to combine digital video
and data on the same disk.
The 4.7GB storage capacity and wide compatibility with DVD Video
and DVD ROM drives lets you store up to 4 hours of MPEG2 DVD
The introduction of dual-layer DVD+R technology is the next important milestone in the drive to continually improve and expand the optical data storage options available to consumers. Users will benefit from the additional storage capacity of the DVD+R disc as it will enable them to record 4 hours of DVD-quality video or 16 hours of VHS-quality video, without the need to turn over the disc. PC users will be able to archive up to 8.5 Gbytes of computer files on a single disc, which almost doubles the storage capacity compared with the 4.7Gbytes for the single-layer DVD+R discs currently available.
The dual-layer DVD+R system uses two thin embedded organic dye films for data storage separated by a spacer layer (see figure). Heating with a focused laser beam irreversibly modifies the physical and chemical structure of each layer such that the modified areas have different optical properties to those of their unmodified surroundings. This causes a variation in reflectivity as the disc rotates to provide a read-out signal as with commercially pressed read-only discs.
Unsure if this DVD will work in your drive? See our DVD FAQ and Compatibility Page for more information.