Sony Adopts Blu-ray Disc PlayStation 3

fenimor writes "Sony announced today that it had begun preparations to adopt Blu-ray Disc ROM (BD-ROM) format as a medium for the next generation PlayStation. Single side double layer Blu-Ray discs have a huge memory size of 54 GB, being an ideal medium to distribute next generation entertainment content from movies and music to computer applications. Next month Sony plans to announce a 200GB 8-layer version of BD-ROM according to MacWorld."

Comments

Re:I wonder

[Anonymous Coward]

Lots. That was a common concern when DVDs came out but there is a lot more data correction on DVD. Same so with BluRay See the FAQ

Re:Flaming Sony for Proprietary Format

[magicsquid]

The Dreamcast DID have a proprietary format. It was called the GD-Rom.

The following explanation is courtesy of SkunkWorks

The Sega Dreamcast GD-ROM system utilizes Oak Technology's OTI-9220 CD-ROM controller which is a single chip integration of Sony's "CXD-3005R" DSP/Servo control and Oak Technology's "OTI-912" CD-ROM decoder.

So what does this mean? Sega had their "proprietary" GD-ROM system designed to use media with 2 times the capacity of CD-ROM discs, but with off-the-shelf CD-ROM components, and may have used a technique of running the spindle motor at half the speed required for CD-ROM's in reading 2x density GD-ROM discs-- tricking the pickup into believing it's reading off data from a CD-ROM disc at "x" (CAV) spindle rpm when it is actually reading a GD-ROM disc at "y" spindle rpm (x divided by 2=y). With same data read rates as with a CD-ROM disc running at twice it's rpm, the optical head, focus servo controls, signal processors, etc etc. aren't aware it's actually reading data off from a larger capacity medium. In other words, the GD-ROM disc is nothing more than a "passively accelerated" (tightly packed) CD-ROM disc, "decelerated" to emulate a CD-ROM by running the spindle motor at half the rpm!