Archos 504
Archos 504 is one of Archos Generation 4 series which is an upgrade to previous AV and Gmini series, primarily AV500s. There are 8 models of Generation 4 series in all. All players are Microsoft PlaysForSure compatible. The Archos 504 is positioned as a bigger, thicker model with large amounts of storage in comparison to the 604. Archos 504 with a removable battery is available in either 40 GB, 80 GB or 160 GB capacities. It retains all of the 604's features. Another great feature of the Archos 504 is that you can purchase a docking station that attaches to your television or home theater so you can watch or view anything stored on the device on your television.