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Protected hi-def discs won't play on 32-bit Windows Vista

Vista_3 Microsoft have announced that copy-protected HD DVD or Blu-ray discs will not be playable on a 32-bit machine running Windows Vista.

Speaking at Tech.Ed 2006, Senior Program Manager Steve Riley made the announcement in a presentation on Windows Vista security.

"This is a decision that the Media Player folks made because there are just too many ways right now for unsigned kernel mode code [to compromise content protection]. The media companies asked us to do this and said they don’t want any of their high definition content to play in x32 at all, because of all of the unsigned malware that runs in kernel mode can get around content protection, so we had to do this," he said.

The majority of PCs currently still use 32-bit chips: Intel's first 64-bit CPU is the Core 2 Duo.

Still, Riley tried to calm any concerns by telling everyone that by the time this became popular, everyone would already be running 64-bit Windows.

Microsoft were also keen to point out that, as storage devices, Blu-ray and HD DVD discs could be used to store a MPEG-4 movie and played back on 32-bit Windows. Commercial protected DVDs, however, would not.

So, yet another nail in the coffin of your current PC, if you want to watch hi-def content on it. The upgrade path could be expensive.

(Via APC)

Update 25 August: Seems there's some debate going over at APC about exactly what was said. What I read into it is that protected discs may play in 32-bit Windows, depending upon the software player used, and whether it checks for unsigned drivers or not. Different people look to be apportioning 'blame' to each other.

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Posted by Andy Merrett on August 24, 2006

Comments

Okay, so basically they're putting the needs of the content producers above their users? I suppose they have to keep the content producers on their side, since relatively few people use Windows Media DRMed music stores, Microsoft needs the content providers, not the other way around. Or maybe they're just trying to keep computer manufactures on their side after delaying Vista until next year. Either way, doesn't bother me - I use a Mac and thus am not subject to Microsoft's slipping product dates and political manouvers.

Posted by: Joe Nixon | August 24, 2006 9:09 PM

Not good - more reasons for HD DVD to fail if discs cannot be played back on computers - more reasons for more consumer confusion and it will only mean more chance of a failed format.

Posted by: Simon Harris | August 24, 2006 9:33 PM

what the... i think it is better make it work on 32bit too, because now still got a lot people using 32bit systems. and i am one of them, although using a powerful AGP X850XT, but only using a 32Bit prescott.

Posted by: chong | August 28, 2006 7:31 AM

"Wait and see" - What's the betting that when it actually appears Vista will play HD DVDs (and probably Blu-Ray) with next to no trouble.

The problem with 32-bit systems is they lack the power to decode a HD DVD video, 5.1 audio, *and* run an Operating System at the same time. Who wants the HD experience ruined by a juddery picture because your PC can't keep up? We can argue for ages about how much of it is due to Microsofts "alleged" bad coding. The fact is 64-bit processers are faster and the easiest way to split into those that can and those that can't is by this measure.

Remember; they arn't thinking of the people who read these pages who (realistically) won't have a problem.

Posted by: Andy Pellew | August 30, 2006 7:41 PM

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