Question : Can I down size a wav file?

When I add sound (WAV) to a PowerPoint file, the result is a file to large to email.  Yet
I receive PPS files, with sound, that have very small file sizes. What's going on?  My
PowerPoint program will only accept WAV sound files.
P.S.-  Is there a way to hack received PPS files to extract the sound?

Answer : Can I down size a wav file?

Seems you can fool PP into thinking an mp3 is really a wav by using a 3rd party program...see http://www.pptalchemy.co.uk/embed_mp3.html

P.S. I haven't personally tried this.