[bobgpsr]

I think that DTS is a must have as a choice - but not necc the end all solution for all DVDs. The mix could sometimes be better on the Dolby soundtrack, although most report a better film audio mix being done on the DTS track (to satisfy those picky users with better audio systems who bother to select the non-default DTS option on the disc menu). BTW it is not necc to have it in the player if your AVR supports it. Just set the player to bitstream and let the AVR fed by a coax or toslink S/PDIF connection decode it. IMHO DTS is more of a AVR/Pre-Pro requirement

I've read Dolby's and DTS's material describing their codecs and personally I like the DTS approach better. Throwing higher clock sample rates at the problem means less tricky compression tricks needed. IIRC Dolby Digital tops out at 640 kbps whereas DTS goes to 1509 kbps.

Bob