I've noticed on many DVD's that there will be an option in the audio menus for Dolby 2.0, or just stereo sound (maybe it's sometimes called Dolby Stereo, can't remember for sure), for those that don't have surround speakers. I was wondering if it's possible to do a standard Dolby reference level volume calibration with the Avia DVD on just the front main speakers and then play a DVD movie in either Dolby 2.0 or stereo sound, using just the 2 main speakers, and still have the movie's soundtrack play back at the proper volume relative to Dolby reference level (depending how loud you turn up the volume control, of course) just the same as if you were watching the movie with a full surround sound setup in Dolby Digital mode? In other words, does Dolby Digital reference volume calibration still work perfectly even if you aren't watching the movie in 5.1 mode, but rather in just Dolby 2.0 or stereo sound? Does it have to be Dolby 2.0 specifically for the reference volume to still apply to the soundtracks of DVD movies (105 dB peaks), or is it true of any "stereo" soundtrack on a DVD movie? Thanks for any help.