Saturday, November 01, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Pirate Bay Co-founder Sentenced To 42 Months Imprisonment
SEL Showcases 1058ppi And Foldable OLED Displays
New Outlook for Mac Available Now, Office for Mac Coming In 2015
Updated BBM Offers More Privacy, Control and More
Panasonic Raises Profit Outlook
Toshiba Offers New 4TB and 5TB Desktop HDDs
Samsung Introduces New Ultra Slim Galaxy A5 and Galaxy A3 Smartphones For The Chinese Market
Sharp 2Q Profit Slides
Active Discussions
DVD/DL for Optiarc 7191S at 8X
Copied dvd's say blank in computer only
Made video, won't play back easily
New Features In Firefox 33
updated tests for dvd and cd burners
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
 Home > News > Optical Storage > GD-ROM
Last 7 Days News : SU MO TU WE TH FR SA All News

Wednesday, November 17, 1999
GD-ROM


GD-ROM (Giga-Byte Disk) is a CD format developed by Yamaha. The GD-ROMs can save up to 1GB of data (in contrast to the normal CD-ROMs which, depending on the data format used, can theoretically hold 90 minutes of information). This method presumably works on the principle that the individual pits are packed more closely than is usual with CD-ROMs. GD-ROMs are used by the games consoles developed by SEGA called DreamCast. The game console uses a 12x GD-ROM drive by Yamaha.

The back of a GD-ROM consists of 3 separate areas:

The inner area with normal write density which can record up to approx. 35MB (4 minutes) of data. This area can be read by a normal CD-ROM drive. This area consists of two tracks. A data track Mode1 and an audio-track, which an audio CD player can play. The respective tracks must be at least 4s long.
The outer area with a high write density which can record approx. 1GB (112 minutes) of data. This area can not be read by a normal CD-ROM drive or CD burner. This area also consists of 2 tracks. This area is written in so-called CAV-mode. Based on information received, the additional available memory space is also achieved by writing information in areas which are normally not used.
Between the outer and the inner area is a blank, unwritten layer which serves as a border between the areas. This area contains the lettering: "..Produced by or under license from sega enterprises LTDs. Trademark SEGA.."



Previous
Next
MP3 in Phones, Cars, Everywhere        All News        MP3 in Phones, Cars, Everywhere
MP3 in Phones, Cars, Everywhere     Optical Storage News      MP3 in Phones, Cars, Everywhere

Source Link Get RSS feed Easy Print E-Mail this Message

Related News
DC ISOS shutdown By Sega
Kalisto wanted to confuse people ?
Sega's answer about DC backups!
Interview with ACCESSION Group
Sega reacts to DC backups and arrests 2 Utopia members
Sega responds to the DreamCast backups
Kalisto strikes again with 2 releases in one day!
New group enters the DC scene
It's real! The first DreamCast backup image now floats around the net!
DC backups coming this week?
Software modchip, allows imports, for DreamCast?
Action Replay for DC ships 2nd June 2000

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .