Quicktime 6 is free, uses
the latest technology (MP 4) and has very good stereo sound. The download
can be sizable if you dont already have Quicktime 5. Click the icon
6a on the "using aAmplify" page if you wish to download and
Real One is free, has great stereo sound, small file sizes and
good visual effects but is quite a big file. Click the icon 6b on the
"using aAmplify" page if you wish to download and install it.