I've been using Staxrip for Blu-Ray encoding for a few weeks now.  For prep work I'm using bdedit to find the proper MPLS then using tsmuxer to demux the video, audio, and subtitle files with the option selected to pull out the audio as AC3 instead of DTS.   At this time I'm really not concerned about subtitles, half of them don't work right in suprip anyways.

Keeping bdedit as prep work could Staxrip be updated to use tsmuxer?  It would be great if I could select th MPLS file and have Staxrip pass along to tsmuxer my defaults so it demuxes the audio/video/subtitles (with the option enabled in tsmuxer to extract the audio as AC3 without the true-hd data) and imports the audio/video with the option of doing a compression test right away! 

That would make the hardest part of ripping Blu-Ray getting the files ripped to the hard drive and figuring out the right MPLS using bdedit.  I've used a variety of Blu-Ray discs with VC1 and AVC encoding.  Thus far I have been able to successfully encode all of them through the use of bdedit, tsmuxer, and Staxrip.