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Posted by Neil Smith [MVP Digital Media] on 07/19/07 21:15
On Wed, 18 Jul 2007 07:48:27 -0700, jonathandowns@gmail.com wrote:
>i'm mastering some video to appear on an enhanced audio CD. i'm
>wondering how big the video files can be, and still playback smoothly
>on most modern computer CD-ROM drives. i'd like to use H.264 quicktime
>compression. i made a test video at the size and quality i'd really
>like...the file size is 60.1 MB, the frame size is 400 x 225, and the
>data rate is 3186.64 kbits/s. will that play smoothly on most modern
>CD-ROM drives? i'm having trouble finding (recent) info online about
>this topic of compressing video for smooth enhanced audio CD playback.
1x CD playback speed is considered ~300kbps. You are expecting 10x
that, however most modern drives can easily sustain 12x speed,
Most are capable of bursting at 32x speed (around 10mbps) because
they're usually DVD drives now. DVD requires minimum data rate about
6mbps
Cheers - Neil
------------------------------------------------
Digital Media MVP : 2004-2007
http://mvp.support.microsoft.com/mvpfaqs
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