I have Win2000 SP2 along with ATI DVD 7.6 Player and PowerDVD 4.0 XP, I believe it is the Standard Edition since it came bundled with my dvd-rom, My question: I thought I read you could change the registry to do DD/DTS SPDIF Passthrough in PowerDVD. Is this true or do I need to purchase the Audio Pack for DTS ? Doesn't make sense why I should have to pay for the DTS Audio pack if Powerdvd isn't going to do the DTS Decoding - I just want to pass it through via SPDIF and my Soundblaster Live to my DD/DTS receiver - I already PAID the rights to do the decoding at my receiver - why pay again ???? I couldn't find the thread again on the registry change or recall if it applied to my scenario. Thanks in Advance.