DVD-RAM


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DVD-RAM

[¦dē¦vē¦dē ′ram]
(communications)

DVD-RAM

DVD-RAM

A rewritable DVD disc endorsed by the DVD Forum. Using phase change technology, DVD-RAMs are like removable hard disks, and the media can be rewritten 100,000 times compared to 1,000 times for DVD-RW and DVD+RW. The first DVD-RAM drives with a capacity of 2.6GB (single sided) or 5.2GB (double sided) became available in the spring of 1998. DVD-RAM Version 2 discs with 4.7GB arrived in late 1999, and double-sided 9.4GB discs in 2000. DVD-RAM drives typically read DVD-Video, DVD-ROM and all types of CD media. See DVD, DVD storage capacities, DVD+RW, DVD-RW and optical disc.


Panasonic Drive and Media
In 1998, Panasonic was the first to debut a DVD-RAM drive, which supported both caddy-based and caddyless media. DVD-RAM discs were placed in the caddy for writing, but CDs and all other DVD media were read bare. (Image courtesy of Panasonic Industrial Company.)







Phase Change Recording
In rewritable DVDs, different intensities of the laser turn bits in the phase change recording layer between a crystalline state and an amorphous state.
References in periodicals archive ?
DVD-RAM blank media production line at the Panasonic Disc Manufacturing Corporation of America in Torrance, California this week, RAMPRG's Jasionowski attributes the popularity of DVD-RAM recorders to the unique technical and functional features of DVD-RAM technology.
Now, users have the choice of employing either the Windows or UNIX/Linux operating systems--combined with DVD-RAM functionality--to manage and manipulate data from video to music to simple text files.
The beauty of the DVD-RAM drives--beyond their great capacity--is their ability to read CD-Audio, CD-ROM, CD-R, CD-RW, and DVD-ROM discs.
Earlier this year, Hitachi and Toshiba, which also support the DVD-RAM standard, unveiled their first products in the format.
Whether it is in DVD+R, DVD-R or DVD-RAM format, Mad Dog Multimedia's MegaSTOR 18X Triple Format will meet or exceed the demands of ALL users.
Panasonic has introduced some of the world's most innovative DVD products to the market including portable DVD players with a built-in LCD screen, DVD-Audio players, DVD video and DVD-Audio players for automobiles, TV/DVD/VCR systems and DVD-RAM drives.
While DVD-RAM for proprietary storage jukeboxes may be a viable prospect, the technology is losing ground in the optical standards race.
In addition to being able to read from and write to DVD-RAM media, the libraries can read DVD-RAM, DVD-ROM, CD-R, CD-RW, CD-ROM, and CD audio media.
The Infinidisc can also mix and match CD and DVD-RAM drives.
The new PX-750 series supports one of the features most requested by Plextor customers -- DVD-RAM functionality," said Pete Schwartz, vice president of marketing and business development for Plextor.
But now I'm seeing DVD-RAM drives that also write CDs; and there's supposed to be a drive coming out this Spring that writes both rewritable DVD-RAM and write-once DVD-R.
With Freedom, all phone-based interactions can be recorded to DVD-RAM or any network-attached storage media, for secure archiving and fast retrieval.