well, I had my doubts but after testing my cinematube, I was pleasantly surprised to find that it plays 1080p mkv's without any problems. Fast forwarding, pausing, rewinding and resuming all worked great! I haven't tried anything besides 720 and 1080p video, but that's really all I bought the unit for.
HDD: 1 TB western digital external NTFS formatted
TV: 1080p DLP connected via HDMI
nice job briteview! I'm going to recommend this to everyone