TDK launches 23.3 GB rewritable Blue-laser discs

September 11, 2003

TDK has informed us that they have launched their line of Blu-Ray discs. While the discs currently are able to hold a stunning 23.3 GB they will probably not become mainstream untill also Blu-Ray recorders will become affordable. The TDK discs will be used with Sony Professional Optical Disc Recording System products which are mainly used by TV stations.

TDK Professional Blue Laser Disc

Features:

High data transfer rate (72Mbps per one optical head)

Armor Plated™ Coating technology (patent pending)

Specifications:

Disc diameter 120mm

Cover layer thickness 0.1mm

Track pitch 0.32um (Groove recording)

Recording form Phase change recording

User recording capacity 23.3GB/side*

User data rate 72Mbps* (1 Optical Head)

Rewritable over 1,000 times

(1-7) RLL code, the format efficiency is about 81 %
all specifications and features subject to change without notice

For more information about Blu-Ray technology please read our article. Check the entire press release of TDK on their website. The discs also use the 'armor' TDK has
recently also introduced on their DVD media, which should make the discs more
resistant against scratches.

Source: TDK.com