[Acer Iconia A500] eztoril:
Ok thanks , but actually I am interested in playing my 720p movies only. I haven't even tried 1080p. MediaInfo gives the following info about the 720p file that gives stuttering playback:

General:

Complete name : D:\Movies\G.SWEDiSH.720p.BluRay.x264-CHRONOHD\Sample\chronohd-g.720p.sample.mkv

Format : Matroska

File size : 53.0 MiB

Duration : 1mn 0s

Overall bit rate : 7 407 Kbps

Encoded date : UTC 2010-01-21 06:45:50

Writing application : mkvmerge v2.9.8 ('C'est le bon') built on Aug 13 2009 12:49:06

Writing library : libebml v0.7.7 + libmatroska v0.8.1

Video:

ID : 1

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L4.1

Format settings, CABAC : Yes

Format settings, ReFrames : 4 frames

Muxing mode : Container profile=Unknown@4.1

Codec ID : V_MPEG4/ISO/AVC

Duration : 1mn 0s

Bit rate : 6 812 Kbps

Width : 1 280 pixels

Height : 720 pixels

Display aspect ratio : 16:9

Frame rate : 24.000 fps

Resolution : 8 bits

Colorimetry : 4:2:0

Scan type : Progressive

Bits/(Pixel*Frame) : 0.308

Stream size : 48.8 MiB (92%)

Language : Swedish

Audio:

ID : 2

Format : AC-3

Format/Info : Audio Coding 3

Codec ID : A_AC3

Duration : 1mn 0s

Bit rate mode : Constant

Bit rate : 448 Kbps

Channel(s) : 6 channels

Channel positions : Front: L C R, Surround: L R, LFE

Sampling rate : 48.0 KHz

Video delay : 28ms

Stream size : 3.21 MiB (6%)

Language : Swedish

Here is another file that not any of the players (vital player, Mobo player, MX videoplayer, Rockplayer lite) I've tried even gives me any picture at all but small green flickering cubes on the screen:

General:

Complete name : D:\Movies\gg\gg.s01e07.720p.hdtv.x264-orenji.mkv

Format : Matroska

File size : 1.09 GiB

Duration : 44mn 49s

Overall bit rate : 3 490 Kbps

Encoded date : UTC 2010-02-22 21:41:29

Writing application : no_variable_data

Writing library : no_variable_data

Video:

ID : 2

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L3.1

Format settings, CABAC : Yes

Format settings, ReFrames : 5 frames

Muxing mode : Container profile=Unknown@3.1

Codec ID : V_MPEG4/ISO/AVC

Duration : 44mn 46s

Bit rate : 3 036 Kbps

Nominal bit rate : 3 104 Kbps

Width : 1 280 pixels

Height : 720 pixels

Display aspect ratio : 16:9

Frame rate : 23.976 fps

Resolution : 8 bits

Colorimetry : 4:2:0

Scan type : Progressive

Bits/(Pixel*Frame) : 0.137

Stream size : 972 MiB (87%)

Writing library : x264 core 85 r1442tw

Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / wpredp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=2pass / mbtree=1 / bitrate=3104 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00

Language : English

Audio:

ID : 1

Format : AC-3

Format/Info : Audio Coding 3

Codec ID : A_AC3

Duration : 44mn 49s

Bit rate mode : Constant

Bit rate : 384 Kbps

Channel(s) : 6 channels

Channel positions : Front: L C R, Surround: L R, LFE

Sampling rate : 48.0 KHz

Stream size : 123 MiB (11%)

Have I missed to install some codec enabling nice and smooth playback of these?

Thanks!

BR

Martin