That depends on whether it's an MP3 audio or MP4 video file. The MP4 video files tend be larger ranging in size from about 60 to 200 MB, while the MP3 audio workouts are generally no larger than about 100 MB each.

Depending on your connection speed, these files may take up to 20 minutes to download. You will be able to watch the workout videos "streaming" (right on the web page) as well as being able to download them to your computer/iPod.