Will do thanks,
I'll have a fiddle over the weekend, out of all my DVD's these are the only ones i have had trouble with :-)
Oh well, makes me want to scream ;-) see the joke?
Extract from Media Info on the MKV i have just created - still just gets a box in the middle though :-(
General
Complete name : I:\ISO\mkv\SCREAM I\Scream I.mkv
Format : Matroska
File size : 3.26 GiB
Duration : 1h 46mn
Overall bit rate : 4 384 Kbps
Movie name : Scream I
Encoded date : UTC 2010-10-01 13:17:16
Writing application : DVDFab
Writing library : libebml v0.7.8 + libmatroska v0.8.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Muxing mode : Container profile=Unknown@3.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 46mn
Bit rate : 3 913 Kbps
Width : 768 pixels
Height : 576 pixels
Display aspect ratio : 4:3
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.354
Stream size : 2.91 GiB (89%)
Writing library : x264 core
Color primaries : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 1h 46mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 292 MiB (9%)