I edited a short movie clip, adding sound and text. The imported music was from iTunes and is in the mp4 format. The video also has voice. The "shared" movie is fine when played off of the hard drive. I burned the finished product to a CD and the sound does not play (I moved it off the CD onto the desktop before playing). I plan on sharing it with people who have PCs and I tried doing the same in Winblows, with the same result. Video is fine, but no music, no voice. Has anyone else encountered this?