Mixerman's testamony aside, I did my own HD test. Otari MTR-90lll @15ips w/SR w/23 audio tracks. HD 88.2 w/23 audio tracks. HD 192 w/23 audio tracks. The analog chain sounded best. 88.2 was good but sounded a little choked. 192 good with better detail and depth. I didn't hear the low end question posed by Mixerman but I'm sure his room and ears are more accurate than mine and his test more academic. Conclusion: In a great control room experienced ears could debate and ponder. In the real world very few would notice. A few other observations: Sample rates above 48 do not support SDll files, only Wave and AIFF. 4 minutes basic unedited 23 audio tracks at 88.2 took 1.52gig 4 miutes basic unedited of 23 audio tracks at 192 took 3.32gig Sync IO locked up very quick. Much better sound and performance than the 888's. Let the stoning begin.