PD disc


Also found in: Dictionary, Thesaurus, Medical.

PD disc

(Phase change Dual disc) An earlier rewritable optical disc from Panasonic that used phase change technology. Introduced in 1995, its 5.25" cartridges held 650MB and withstood 500,000 rewrites. The PD drive also read CD-ROMs, but not Panasonic's prior phase change (PCR) disks. See phase change disc and optical disc.


PD Cartridge
The PD cartridges looked like and used the same technology as DVD-RAM discs. Panasonic DVD-RAM drives could also read PD discs.
Mentioned in ?
References in periodicals archive ?
Moreover, the PD/CD-ROM Library is ideal for several new applications, including video-on-demand, where video stored on a CD-ROM and/or a PD disc can be made available to multiple locations, e.g., in hotels, motels, and hospitals.
The new libraries can be used to access a combination of rewritable, 650 MB PD discs and/or CD-ROM titles at quad speed.