Sony blu ray disc's seem to survive steel wool torture

[RJW]

http://boards.ign.com/Message.aspx?topi ... 3&brd=5296

[Ian]

Sigh.. why does everyone think that Blu-ray was developed solely by Sony? The hard coating on the disc was developed by Matsushita (Panasonic).

[dolphinius_rex]

wow the IGN forums are remarkably childish....

That's awesome news for parents of young ones though! This means that they won't need to worry nearly as much about making backup copies or replacing discs.

[Ian]

wow the IGN forums are remarkably childish....

Yeah, it reminds me of another place that likes to bash Sony. Sadly, their comments are probably a good sampling of how young people feel about Sony and Blu-ray in general.

[RJW]

If my info is right then there are differnt technology sollutions when it comes to the coating.
TDK had a option and Matsushita and also some other compannies.
I don't know what technology sony is currently ussing.
So any public info that sony uses Matsushita's technology ?

[Ian]

Does TDK actually have a technology or do they rename whatever is used? I swear their DVD media also has Duracoat or whatever too.

[RJW]

TDK has the technology.

As a founding member of the Blu-ray Disc Association, TDK is playing a key role in the development of the new format. Because the Blu-ray Disc format can store up to 25GB of data on a single disc that is the same size as a standard DVD, unprecedented recording media stability and precision are mandated. To realize the narrow track pitch and high recording density required by Blu-ray Disc without sacrificing reliability, TDK has developed new disc formulations and manufacturing technologies.

Last taken from http://www.physorg.com/news2615.html


Quite some sources list TDK as the companny who came with the coating idea for BLU RAY so no longer the cases had to be used.

[Ian]

I swear Matsushita had some coating technology as well. This sticks in my mind because they caused problems during the Blu-ray/HD DVD talks. If they would have created a new format, they would have lost out on royalties.

Edit: Matsushita developed the cover layer. The hard coating is actually on top of this.