Hi Folks. new to the forum. Don't know much about audio set up, but my brother does and set up my dolby digital amp, surround sound (Not DTS). We encountered a weird issue. Hopefully someone can help. Here's the deal (sorry if my explanation sounds pedestrian). DVDs, video games and cable where dolby applicable -- and older blue rays with no DTS (dark knight returns for example) the surround sound works great. However, on most DVDs with DTS, the previews before the movie, the surround sound works, but then turns off when the main movie begins. Here's the weird thing: When I check the audio display on the PS3 remote, it is set to DTS. However, when I change the language channel to french or spanish, the setting changes to multichannel dobly, and the surround sound works. But there is absolutely no option to change the main english channel to dobly, even though all Blue Rays that have DTS have dobly and doblyHD listed on the back as well. It is stuck on DTS and I get no surround sound (although I still get straight audio from the rear speakers). also, I have at least one movie, Ong Bak 2, that says it is DTS, but plays with surround sound. So weird. Please help!