Hello all and congratulations for an *AWESOME* product! Have been using xbmc for 3 years more and the combo xbox+xbmc must be the best buy I've made in the last 15 years

It also amazes that you never stop squeezing more out of the (outdated by today's standards) hardware. THANK YOU (from the bottom of my heart la-la-la

).
Onwards to the subject. Using this modified build (dated January 3rd iirc):
1) AAC sound in Matroska now plays fine. With the "normal" build no sound was detected at all
2) 512x384 Nero Digital clips, using the standard definition AVC profile and encoded with CABAC, 2-pass and AAC 2.0 audio, play without even a hitch! (NOTE: I convert the .mp4 ND files to matroska, test above is in .mkv format)
3) AutoMKV files in 704x3xx and higher resolutions have major stutters at some points. Sound is in AC3 or AAC format. x264 command line to produce these clips:
Code:
"E:\AutoMKV\exe\encoder\x264.exe" --pass 1 --bitrate 478 --stats "F:\finished\temp\.stats" --ref 0 --no-b-adapt --progress --keyint 250 --bframes 3 --qpmin 10 --qpmax 51 --no-psnr --trellis 1 --ref 3 --filter -2,-1 --direct auto --vbv-maxrate 25000 --me umh --no-ssim --merange 12 --weightb --b-pyramid --analyse p8x8,b8x8,i4x4,i8x8,p4x4 --8x8dct --threads 3 --output NUL "F:\finished\temp\movie.avs"
"E:\AutoMKV\exe\encoder\x264.exe" --pass 2 --bitrate 478 --stats "F:\finished\temp\.stats" --progress --keyint 250 --bframes 3 --qpmin 10 --qpmax 51 --no-psnr --trellis 1 --ref 3 --filter -2,-1 --direct auto --vbv-maxrate 25000 --me umh --no-ssim --merange 12 --weightb --b-pyramid --analyse p8x8,b8x8,i4x4,i8x8,p4x4 --8x8dct --threads 3 --output "F:\finished\temp\movie.mp4" "F:\finished\temp\movie.avs"
Sharktooth x264 profile used: HQ-Slower.xml
4) Disabling the in-loop deblocking, by tweaking <XBMC>/System/Players/.../mplayer.conf file seemed to improve playback on those SDTV clips (ie watchable playback, with minor skips at time).
Keep up the good work lads