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Prodisc Boosts DVD-R Capacity
Martyn Williams, IDG News ServiceTue May 24,11:00 AM
ET
Prodisc Technology has developed a DVD-R disc that can
hold 200MB more data than current discs and plans to
unveil it at next week's Computex show in Taiwan.
The disc has a capacity of 4.9GB, versus 4.7GB for a
conventional DVD-R. The extra capacity was realized by
reducing the gap between the successive turns of the
disc's spiral recording track. By reducing the gap,
also called the track pitch, a longer track can be
fitted onto the disc and so more data can be stored.
Because the track pitch has been changed, the new disc
won't be compatible with all current DVD drives.
Fifteen drives from major drive makers offer full
support for the disc, which means allowing storage of
up to 4.9GB, says Bryan Huang of Prodisc's storage
media research and development department.
The company has an additional list of about 100 drives
which offer partial support, such as allowing storage
up to 4.7GB only or slower recording speeds. An
additional 26 consumer DVD-R video recorders also
offer partial support.
Prodisc, based in Taipei, hasn't determined if the
disc meets the DVD-R specification, which allows for a
certain margin of error in track pitch, says Huang.
The DVD Format Licensing and Logo Corp., responsible
for issuing licenses that allow the use of the DVD
logo, says it has yet to receive compliance testing
information for the disc and so can't make a judgment.
Full Support
The 15 drives with full support are:
Behaviour Tech Computer's (BTC) DRW1108IM
BenQ's DW1620LG
Electronics' GSA-4082B and GSA4120B
Lite-On Technology's SOHW-1613S
NEC's ND-3500A
Optorite's DD0401
Pioneer's DVR-107D and DVR108
Plextor's PX-708A and PX-712A
Ricoh's MP-5308D
Samsung Electronics' SH-W08A
Teac's DV-W58D
Toshiba's SD-R5272
Prodisc will show the disc under its SmartBuyDisc
brand at Computex, which runs in Taipei from May 31 to
June 4.
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