PS here's the most recommended list of media players:

01 - PCH A-200
02 - Mede8er MedX500
03 - HDI BD Prime 3.0 (Hybrid)
04 - PCH C-200 (Hybrid)
05 - TviX N1 (No internal HDD)

I just tested the Sigma based Popcorn Hour A/C200 player I can say to you that the sound is superior (read: bitperfect = perfect HD audio) from the Sigma (ie Dune/Popcorn Hour) while the video quality is on par with Theater+/Oppo BD1. There are Bluray menus but that's not too important for me. The networking settings are straightforward and logging onto your NAS is very fast via the shortcut. The file directory is nicely organized. Subtitles nicely integrated. Advanced features are feature-rich.

I would recommend without hesitation the PCH A/C-200 over any other media player. I am not a fan of Dune for various reasons that I won't get into.

JerryL check out Popcorn Hour you won't be disappointed with the a/v quality and the simple interface is quite good -- it is a perfect match for the HD621. (You can also set up YAMJ for a slick interface with movie pictures and direct imdb info/ratings of each title. It's very similar to the Sooloos in that regard.)

Hope this helps and sorry for being contrarian crion but I'm not a fan of Dune and Popcorn Hour is superior in every way. My 2nd choice is the Theater+.