It’s really hard to tell if the video is embedded. I know there are tools to extract embedded files (like pictures and sounds) from shockwave flash files, but I don’t know if any exist for powerpoint. You could attempt to ask the person who sent you the powerpoint presentation what the format of the original file was.
Also do you have quicktime? If not download it, that’s what the error message says you need.
QuickTime and a YUV420 codec decompressor are needed to see this picture.
This happened when somone sent me a powerpoint file w/ video embedded. How do I get it to play? Where do I find these codecs?