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compressing 30 minute video for CD delivery
We have about 1/2 hour of video clips that need to be delivered on a CD for playback embedded in Powerpoint slides to run in WindowsXP. What’s the best way to compress the video to fit into 630 mb availible?
Thanks.
Barry -
4 Replies
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You probably want to use either MPEG-1 at 352×240 or 352×480 progressive, or Windows Media 9 at 640×480. In both cases you could encode to a max of 2.5mbps and fit all of the video on the CD with the video still looking good and playing back in Powerpoint.
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Charles, wouldn’t you want to encode at 320×240 for playback on a computer monitor (square pixels)? I always thought 352×240 was for VCD.
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Most software will recognize the 4:3 flags and display the 352×240 MPEG-1 at 320×240. I am not 100% positive that Powerpoint will, but if it didn’t, then yes, encode to a square pixel size format.
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WMP before v9, and DirectShow/VfW implementations of that era couldn’t do non-square-pixel correctly, which is why square pixel MPEG-1 is so emphasized. Less of an issue today, although there isn’t any real reason to encode at anything other than the final frame size.
My Book: https://www.benwaggoner.com/books.htm
Squeeze and ProCoder tutorials: https://www.classondemand.net/benwaggoner/
Compression Class at Stanford: https://www.digitalmediaacademy.org/compression.html
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