Flash or Quicktime?

[Colin Holgate]

You could make them as H264 based movies (with AAC sound), either .MOV  
or .MP4. Both would play fine via QuickTime, and both can play in the  
current Flash player. You could build it now as QuickTime only, and  
then change your mind later if you were still worried about people  
installing QuickTime.

You know that all people who use iPhones or iPods with their PCs do  
have QuickTime installed? Even those with just iTunes do, so the  
number of people with QuickTime  installed is higher than you might  
think. Also, you can include the QuickTime installer on your DVD-ROM.