WINDOWS MEDIA 9 PLAYBACK REQUIREMENTS:
It is possible to playback the movies from ANY Internet connection. This is because the movie files are encoded in Multi Bit Rates Video. The bit rates are 148 Kbps, 109 Kbps, 58 Kbps, 43 Kbps and 28 Kbps.
MS Windows Operating System is a requirement.
Intel Pentium Processor MMX or other faster Processor is needed for quality playback.

WINDOWS MEDIA 9 CODEC DOWNLOAD FOR MS WINDOWS SYSTEMS
You need to have the Windows Media 9 Codec in order to be able to playback the movies.
For Windows 95, 98, ME, 2000 you can download the following codec from Microsoft in order to playback correctly.
822 KB  4 min. @ 28,8 Kbps (c) Microsoft Corporation (Source)