• Compression Techniques

  compressing 30 minute video for CD delivery

  Posted by Roseberrye on October 8, 2005 at 1:32 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

  Ben Waggoner replied 20 years, 7 months ago 4 Members · 4 Replies
• 4 Replies

• 

  Charles Simonson

  October 13, 2005 at 12:04 am

  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.
• 

  Dave Ornowski

  October 13, 2005 at 4:38 am

  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.
• 

  Charles Simonson

  October 13, 2005 at 8:53 pm

  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.
• 

  Ben Waggoner

  October 21, 2005 at 5:11 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: 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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