The PM PrepCast™ is delivered to as MP4 (video) and MP3 (audio) files. The audio encoding is at CD quality sound. Any media player of the latest generation should be able to play these files.
Go ahead and try our free PrepCast first. It contains a number of video and audio files so that you can see if it works on your player.
In total the lessons of the complete PrepCast are about 8GB in size.