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Post By
Reverend Meteor

In Reply To
Henrique Ferreira

Subj: Re: Meteor has a dumb question...
Posted: Tue Jan 08, 2008 at 06:02:46 pm EST
Reply Subj: Re: Meteor has a dumb question...
Posted: Tue Jan 08, 2008 at 04:12:41 pm EST


Previous Post

> Ok on to my dumb question. The Blu-Ray discs are about 25 GB right? Does that I can put 25 GB of movie files on one disc or is it still going to be about 2+ hours of video that the disc can contain? If a disc could contain 25 GB of video I would be impressed.

Single layer is 25GB, dual layer is 50GB.

As for what the disks can hold, they can hold 25GB (or 50) of data, in whatever format it comes, be it a few hours of video at 1080p resolution at 40 Mbps, plus audio tracks with several channels, or 25GB (or 50) worth of data files in any formats. It's just like a DVD, only with a lot more room for storage.

Henrique Ferreira




Battlestar Galactica MB

The Heroes MB

Lost/Alias MB

Stargate MB

> > Ok on to my dumb question. The Blu-Ray discs are about 25 GB right? Does that I can put 25 GB of movie files on one disc or is it still going to be about 2+ hours of video that the disc can contain? If a disc could contain 25 GB of video I would be impressed.
>
> Single layer is 25GB, dual layer is 50GB.
>
> As for what the disks can hold, they can hold 25GB (or 50) of data, in whatever format it comes, be it a few hours of video at 1080p resolution at 40 Mbps, plus audio tracks with several channels, or 25GB (or 50) worth of data files in any formats. It's just like a DVD, only with a lot more room for storage.

Ok the reason I asked was because I saw this on wikipedia:

The choice of codecs affects the producer's licensing/royalty costs, as well as the title's maximum runtime, due to differences in compression efficiency. Discs encoded in MPEG-2 video typically limit content producers to around two hours of high-definition content on a single-layer (25 GB) BD-ROM. The more advanced video codecs (VC-1 and H.264) typically achieve a video runtime twice that of MPEG-2, with comparable quality.

So I wasn't sure if that meant the codec limited how much the disc could hold to a couple hours or something else.


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