I've just ripped a few DVDs to my hard disk, and tried to play one of them through PowerDVD. I chose to rip the DTS sound track, and I have a Sonic Fury sound card with a fairly crummy pair of PC speakers. I suspect that I'm not getting sound because I can't decode the DTS signal. The DVDs that I ripped with DD 5.1 sound are fine, so it's not the way in which I ripped the film. You'll have to excuse my ignorance with this, but am I required to have a DTS decoder (either hardware or software) in order to hear stuff encoded in this format? Is there not a bog standard stereo component to it that I can hear? I want to rip the DTS version for the future. I don't want to have to include the DD audio, as it will ballon the file size by massive amounts.