Cai, while I agree that the claim that the RFQ5000 decodes all the formats is somewhat misleading, if you read wht Jim Fosgate himself said about designing this unit, you'll see he makes no such outlandish boasts. His intent with this unit was to make a car surround processor that would provide the most versatile and discrete decoding possible. While I have just set up DTS and DVDA in my home adio setup, and am impressed, what I like about this unit for the car is it's ability to create surround from the radio, from stereo and quad cassette recordings, which gives you more choices of music in the car. And it is on par with the Tate in it's discreteness. As for decoding DTS and Dolby Digital, while it doesn't have digital inputs, it will play the 2 channel surround tracks that most of these discs contain. I am currently running one of these in my car with a high end cassette deck, and I still have room to add a DTS CD player down the road. I think that they compliment one another, like CD-4 and SQ.