I have the choice of using DPL II or DTS NEO and as well as some other processing modes on the Outlaw 950, to convert 2 channel music or 2 channel video (recorded sometimes in DPL) to my 5.1 channel home theater. These days I seem to prefer DTS NEO-M for music, over DPL II-M. These are just my preliminary results, and I haven't experimented with the many parameters DPL II offers. Maybe am overlooking some of what DPL II does. My most critical music listening is with music not video. So far anyway, for music that comes in as 2 channel (like CD's and FM radio), I gravitate towards DTS NEO-M rather than DPL II-M. I have just 5.1 so maybe my results would differ with 6.1 or 7.1 home theater. Anybody else have opinions about DPL II versus the other processing modes?