I have a Sony BDP-S590. I'm using the Sony BDP, HT, SNP profile. On any file I try (even files that are supported directly from my NAS in native format), I get the message 'file is corrupt or not supported'. I did notice that the formats it is trying to transcode to are a bit off.

The ffmpeg information from one of the MPEG2/MKV that I ripped using MakeMKV is below:
ffmpeg version N-40693-gc457a29 Copyright (c) 2000-2012 the FFmpeg developers
built on May 15 2012 12:57:14 with gcc 4.6.2
configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc/include --extra-ldflags=-L/home/peter/cc/lib --pkg-config=pkg-config --disable-w32threads
libavutil 51. 51.100 / 51. 51.100
libavcodec 54. 21.101 / 54. 21.101
libavformat 54. 5.100 / 54. 5.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 73.100 / 2. 73.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 11.100 / 0. 11.100
Input #0, matroska,webm, from '\\diskstation_lw\video\Movies\48 Hours.mkv':
Metadata:
creation_time : 2012-07-31 23:56:09
Duration: 01:36:34.99, start: 0.000000, bitrate: 5850 kb/s
Chapter #0.0: start 0.000000, end 312.445467
Metadata:
title : Chapter 01
Chapter #0.1: start 312.445467, end 652.318333
Metadata:
title : Chapter 02
Chapter #0.2: start 652.318333, end 1203.702500
Metadata:
title : Chapter 03
Chapter #0.3: start 1203.702500, end 1452.083967
Metadata:
title : Chapter 04
Chapter #0.4: start 1452.083967, end 1802.133667
Metadata:
title : Chapter 05
Chapter #0.5: start 1802.133667, end 2214.011800
Metadata:
title : Chapter 06
Chapter #0.6: start 2214.011800, end 2778.575800
Metadata:
title : Chapter 07
Chapter #0.7: start 2778.575800, end 3449.746300
Metadata:
title : Chapter 08
Chapter #0.8: start 3449.746300, end 3980.409767
Metadata:
title : Chapter 09
Chapter #0.9: start 3980.409767, end 4278.207267
Metadata:
title : Chapter 10
Chapter #0.10: start 4278.207267, end 4550.178967
Metadata:
title : Chapter 11
Chapter #0.11: start 4550.178967, end 4770.532433
Metadata:
title : Chapter 12
Chapter #0.12: start 4770.532433, end 5377.338633
Metadata:
title : Chapter 13
Chapter #0.13: start 5377.338633, end 5550.144600
Metadata:
title : Chapter 14
Chapter #0.14: start 5550.144600, end 5794.994000
Metadata:
title : Chapter 15
Stream #0:0(eng): Video: mpeg2video (Main), yuv420p, 720x480 [SAR 8:9 DAR 4:3], 9800 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 59.94 tbc
Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s (default)
Metadata:
title : 3/2+1
Stream #0:2(fre): Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
Metadata:
title : 2/0
Stream #0:3(fre): Subtitle: dvd_subtitle (default)
At least one output file must be specified


---> DB Level Info: 8, 4
---> Frame rate: 29.97
---> Aspect ratio: 4:3