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Even though Blu-ray disc technology allows creating multi-layer high-capacity media that can store hundreds of gigabytes of data, the Blu-ray disc Association (BDA) claims officially that existing Blu-ray disc players will not be compatible with 100GB or 200GB BD media. Nevertheless, BDA claims that 50GB will be enough for movies for many years to come.

“I think there will be applications for larger capacity recordable discs, but it would be difficult for [discs larger than 50GB] to achieve compatibility with the installed base of players. This is because player manufacturers design players to meet published specifications that define maximum media capacity, which in the case of Blu-ray Disc, is 50GB on two-layer media,” said Andy Parsons, senior vice president of corporate communications and new product planning for Pioneer and the chairman BDA’s promotion committee in the U.S., in an interview with Home Media Magazine.

Many media producers, such as Sharp or TDK, have been quite vocal about ultra high-capacity Blu-ray disc media. 100GB and 200GB BDs were shown back in 2006 and 2007, but have never made it to the market due to rather simple reasons: there are no cost-effective blue lasers that can read or record multi-layer Blu-ray discs.

In fact, incompatibilities between various high-capacity cassettes or discs with appropriate players are nothing new to the market. For example, some DVD players do not support DVD±R DL media, whereas some VHS players did not support long-play 240 minutes video cassettes. As a result, content makers had to stick to default standards that were supported by all installed players.

“But interestingly, virtually all published content in VHS was released in two-hour SP mode, since it was the lowest common denominator among the installed base of tape decks. Pretty much any VHS deck could play pre-recorded movies regardless of their age. This is synonymous with my argument for the longevity of 25/50GB Blu-ray Disc media for publishing,” said Mr. Parsons.

Tags: Blu-ray


Comments currently: 6
Discussion started: 10/10/09 06:13:02 AM
Latest comment: 10/15/09 08:36:14 AM
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This is because player manufacturers design players to meet published specifications that define maximum media capacity, which in the case of Blu-ray Disc, is 50GB on two-layer media

Whoever wrote and then approved those specifications should bend over for some serious spanking with my anti-incompetence belt!
0 0 [Posted by: MyK  | Date: 10/10/09 06:13:02 AM]
- collapse thread

Interesting thing is: there is no actual force against Blu-ray.
0 0 [Posted by:  | Date: 10/10/09 11:14:17 AM]
True in both the witty way that made me laugh out loud reading your comment, plus there just isn't any real contenders to BD out there at this moment. I don't think it'll wash down easy on consumers having to upgrade their players once more, after it all happened not so long ago with all the different BD specifications "upgrades", then just to wait for another update to support 3D in probably less than a year. As it seems, BD's specification changes faster than underwear of those writing them. XD
0 0 [Posted by: MyK  | Date: 10/10/09 03:16:08 PM]
If there were a proper rival with a finalized spec, then BDA would be more conservative in terms of their spec.
0 0 [Posted by:  | Date: 10/15/09 08:36:14 AM]

Well ... corruption is SONY's specialty and that's why TOSHIBA was kicked of so fast and definite although it was offering the cheaper disks and players while 16 GB was 400% the DVD-R capacity thus being a good evolutionary step. 25 GB is around 50% more but the price of the blanks is around 300% higher. However you put it, BluRay is the less desirable choice. I would have liked TOSHIBA to continue the HD-DVD propaganda ... even if at a much lower pace, having HD-DVD still available as an option, would have driven the prices down and the quality up. Having NO COMPETITION is hell for consumers.
0 0 [Posted by: East17  | Date: 10/11/09 05:34:10 PM]
- collapse thread

Toshiba renounced their claims to spread their legacy compatible HDDVD format around a world as they sign an unofficial settlement with BluRay group leaving them more lucrative markets and claiming only China for itself. So it's not a hard thing to see who really profit on this considering lack of turmoil in last two years on ramping chinese market and overpriced non-standardized overeager BluRay format for the other suckers. It's nothing new in bipolar world.
0 0 [Posted by: OmegaHuman  | Date: 10/12/09 01:01:06 PM]


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