Roku Support
posted this on July 20, 2011 01:20
The Roku USB Media Player channel enables you to play back personal video, music and photo files from a USB drive on your TV. The following media file formats are supported:
Only supported file types are shown in the Roku USB Media Player channel. The app hides unsupported file types, as well as folders with no supported file types in them, from view.
Dolby Digital in movies is supported via pass through only. You must connect your Roku player via HDMI or S/PDIF (optical) to a TV or receiver capable of decoding Dolby Digital in order to hear videos with audio tracks in that formats.
Click here to see how to convert videos for playback on the Roku USB channel.
