How does the XDCAM systems Professional Disc media differ from DVD?
Profoundly. Although both are 12 cm in diameter and 1.2 mm thick, Professional Disc media has five times the capacity, 13 times the transfer rate, a shorter laser wavelength and a protective cartridge for the media. Professional Disc media capacity is 23.3 GB, compared to 4.7 GB for DVD. The XDCAM HD decks and camcorders have a transfer rate of 72 Mbps, compared to 11 Mbps for DVD. The XDCAM system uses a blue-violet laser as opposed to the red laser used for DVD.
