Since the beginning of the high definition video era, people have been clamoring to get their hands on a good HD media player. These awesome little gadgets can fit in your pocket, but they will play video at a high definition resolution on a clear screen. If you want to listen to the sound on your HD media player, you can either use headphone or listen through the built in speaker. The best HD media players will play a whole range of high definition formats, including MP4 and MP5 formats. They come in all different sizes and with a range of features, so you're sure to find one that will suit you.