Question about video (PHP unrealted)

I know this is bad but this is the only listserver/newgroup thingy I use because I am php challenged. Any how, I want to embed windows media player in my php pages (which I have done successfully), but I need help: I was wondering which is the best format for demand downloading of video files (not streaming) that work with media player. Also, I have my sample video created in a quicktime .mov format also and avi format and an mp4 format. How can I get this converted to a asf or wmv format? Any tips? Any free software that can convert files? Thanks and sorry for the off topic distraction. Frank __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree