Hi JohnK,

Well with regards to the 75 vs 85 db standards, I have made a call to a friend of mine in LA this morning who is the recording business, and he has confirmed that the reference level for audio is 85db and that The THX technician, (The guy I spoke to was actually a certified tech, not a marketer)was correct that theater is 75db. I agree with you that they should follow the instructions from the disc that this is what the manufacturer of the disk intended, and has done their work on it based on those measurements. But it also does not mean that it is correct or should be taken as the gospel.