Play MKV, FLV, MP4, XVID and other popular formats on your big screen TV with these multimedia players. You don't need to figure out which codec you need to install. Got a sound system? These players can output up to 7.1 channels for Dolby TrueHD and DTS-HD Master Audio. No need to stand up to change discs. Plug in a big capacity hard drive and you're good to go. These players are very fun and convenient to have.