200 GB BD's

[cajmoyper]

Does anybody know if these new 200 GB BD's are going to have four layers? If so, and they decide to put movies on those, we're not going to be able to watch them in our now players. Yeah?

[Blu-Style]

I guess 200 Gb Blu ray´s have 8 layers...
and 50 Gb are good enough for a long time

it could take a while until the 200Gb Discs getting measure-suited...

[jorg]

they wont put movies on 200 gigs cuz it would render all curent player obsolete but 100 gig disc have been reported working witth just modifyed optics but they wont even do that 50 gigs is what we using 4 next 10 years

[dialog_gvf]

TDK has also developped a 33GB per layer form that allows 3 layers for 100GB and 6 layers for 200GB.

[WickyWoo]

you don't want a recordable disc with more than 2 layers

do you really want to keep increasing the possibility of failures?

[BluManta]

Originally Posted by cajmoyper

Does anybody know if these new 200 GB BD's are going to have four layers? If so, and they decide to put movies on those, we're not going to be able to watch them in our now players. Yeah?

I not sure how many layers, I heard 6. They wont put movies on them for a very long time. And no normal BD players will not be able to read them. Most can only read up to 2 layers, some even only 1.

[Blue]

Originally Posted by BluManta

I not sure how many layers, I heard 6. They wont put movies on them for a very long time. And no normal BD players will not be able to read them. Most can only read up to 2 layers, some even only 1.

ALL Blu-ray players can read 2 layers. Some burners can only burn 1 layer.

[takezo]

Originally Posted by Blue

ALL Blu-ray players can read 2 layers. Some burners can only burn 1 layer.

Exactly.


Many of the new release BD movies, are dual layer discs. Any blu-ray player can play them.

[WickyWoo]

They will never put movies on them, ever

If there's enough content to need more than 50GB, they'll go to a second disc. The added value and non 80% coasters will be worth it.

[TooTallTom]

Originally Posted by WickyWoo

They will never put movies on them, ever

If there's enough content to need more than 50GB, they'll go to a second disc. The added value and non 80% coasters will be worth it.

Through the grapevine, 6 layers for 200 Gb, I seriously doubt that the Entertainment industry will ever look at them for movies, 50 gigs has been chosen as the standard and will stay that way. However, IT is drooling over these discs, for good reason. Also, once the manufacturing process for these discs stabilizes (ie before they hit the market) the discs won't have 80% failure rate, its not a stamping process therefore is much more consistent in production. We're not talking about 360's here

[WickyWoo]

after 6-7 years of DVD-18s, they went from about 35% failure rate to 20%

By contrast, DVD-9s are well under 5%.

With a 6 layer disc, you're talking at least 50% failure rate, because each individual layer exponentially increases the likelyhood of failure.

[jubaiweaponx]

they would definitely have to find a way to stabilize the failure rate before they could even think of pushing content limits what they have now is reasonable but yeah i could see the IT community being all over this if they can find a way to make it work properly ..

[TooTallTom]

Originally Posted by WickyWoo

after 6-7 years of DVD-18s, they went from about 35% failure rate to 20%

By contrast, DVD-9s are well under 5%.

With a 6 layer disc, you're talking at least 50% failure rate, because each individual layer exponentially increases the likelyhood of failure.

Comparing the manufacturing process for Blu-ray and the manufacturing process for DVD/CD is like comparing apples and oranges, I'm not saying that there won't be a failure rate, but we won't see them on the market until its below an acceptable limit. Yes the chance for failure increases with each additional layer, but you're using the wrong statistics. Whats the failure rate for a single or dual layer Blu-ray? From what we've seen in our in house tests it has been slim to none, especially with the latest manufacturing changes made (for multiple brand name disc manufacturers)
keep in mind, Blu-ray's recording layers are spun on in a similar fashion to semiconductor manufacturing, compare this to the stamping method used for Red laser DVD and CD recording layers

[WickyWoo]

There aren't any stats, unofficially I know that TotalHD has been coastering well over 50%, but that may not be applicable to a multilayer on one side BR

Either way, there's a principle of marketing called Percieved Value. If you have enough content to max out a BD-50, chances are you want to go for a second disc to help justify the SRP anyway

[TooTallTom]

Originally Posted by WickyWoo

There aren't any stats, unofficially I know that TotalHD has been coastering well over 50%, but that may not be applicable to a multilayer on one side BR

Either way, there's a principle of marketing called Percieved Value. If you have enough content to max out a BD-50, chances are you want to go for a second disc to help justify the SRP anyway

Trust me, there are uses for 200 gig discs. If my understanding of what TotalHD manufactures, you aren't talking about Burnable Media. I agree with you, the format for movie's has been set at 50 gigs. But do keep in mind that there are other applications out there for this media then watching superman's rippling biceps in Hi-def.

[Lee Christie]

There's a type of disk called SVOD which aparently has 100 layers.

[WickyWoo]

I agree with you, the format for movie's has been set at 50 gigs. But do keep in mind that there are other applications out there for this media then watching superman's rippling biceps in Hi-def.
__________________

It's the reliabilty I'm worried about of that burnable media, given the problems with the far less volitile "stamped" media.

[dialog_gvf]

Originally Posted by WickyWoo

after 6-7 years of DVD-18s, they went from about 35% failure rate to 20%

Do you have a link on that?

Some of the anti-BD types point to 90% as a minimum acceptable yield. But, clearly DVD-18 is somewhat accepted.

The claims for BD-50 yields from Panasonic lines was 80% before they actually went into real production, and people were pointing at that as unacceptable.

Gary

[WickyWoo]

Most of these figures were gotten from people who work in replication and authoring.

DVD-18 has been used, more than anything to free up line space/time, and to create smaller packaging so retailers will stock more units. With the introduction of thinpack, most of that advantage went byebye

Anyone who buys a lot of Warner or Uni TV sets can tell you how many DVD-18s slip through QC that are defective. At least 1 defective disc is commonplace. I'd say I hit at least 1 in every 3 DVD-18 sets I buy.

Here's an old article from when they first came out, explains the unique process. With the still existing failure rates on DVD-18, and the much lower tolerances of HD and BR, is it really any shock that Warner's having trouble?

http://findarticles.com/p/articles/m...13/ai_60003044

[dialog_gvf]

The surface transfer step (STP) that distinguishes the two shipping DVD-18s from DVD-9s is a replication-process innovation of Warner's own design. Thus it remains the only demonstrated method for DVD-18 replication.

LOL!

Gee, I wonder why Warner pushes HD DVD/DVD combos and TotalHD?

Funny, how that article talks about low end players, poor specs, etc. contributing to problems reading DVD-18 type discs. Clearly an old article (Feb 2000), but the irony is beautiful.

Gary