FORUMS: list search recent posts

compressing 30 minute video for CD delivery

COW Forums : Compression Techniques

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
roseberrye
compressing 30 minute video for CD delivery
on Oct 8, 2005 at 1:32:05 am

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


Return to posts index

Charles Simonson
Re: compressing 30 minute video for CD delivery
on Oct 13, 2005 at 12:04:49 am

You probably want to use either MPEG-1 at 352x240 or 352x480 progressive, or Windows Media 9 at 640x480. 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.


Return to posts index

Mochegod
Re: compressing 30 minute video for CD delivery
on Oct 13, 2005 at 4:38:43 am

Charles, wouldn't you want to encode at 320x240 for playback on a computer monitor (square pixels)? I always thought 352x240 was for VCD.



Return to posts index


Charles Simonson
Re: compressing 30 minute video for CD delivery
on Oct 13, 2005 at 8:53:01 pm

Most software will recognize the 4:3 flags and display the 352x240 MPEG-1 at 320x240. I am not 100% positive that Powerpoint will, but if it didn't, then yes, encode to a square pixel size format.


Return to posts index

Ben Waggoner
Re: compressing 30 minute video for CD delivery
on Oct 21, 2005 at 5:11:01 pm

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: http://www.benwaggoner.com/books.htm
Squeeze and ProCoder tutorials: http://www.classondemand.net/benwaggoner/
Compression Class at Stanford: http://www.digitalmediaacademy.org/compression.html


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]