why is this file causing problems?

[julius02]

hi guys. why is this one particular rip from a canadian blu-ray causing problems on xbian - it judders terribly and is not very smooth whatsoever. it is not randomly, it is constant from start to finish.
thanks

Format : Matroska
Format version : Version 4 / Version 2
File size : 11.0 GiB
Duration : 1h 25mn
Overall bit rate mode : Variable
Overall bit rate : 18.2 Mbps
Movie name : Halloween
Encoded date : UTC 2010-02-22 21:41:31
Writing application : mkvmerge v5.9.0 ('On The Loose') built on Dec 9 2012 15:37:01
Writing library : libebml v1.3.0 + libmatroska v1.4.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=24
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 25mn
Bit rate mode : Variable
Bit rate : 17.4 Mbps
Maximum bit rate : 35.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : MBAFF
Bits/(Pixel*Frame) : 0.281
Stream size : 10.5 GiB (96%)
Language : English
Default : No
Forced : No
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : Header stripping
Codec ID : A_AC3
Duration : 1h 25mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 275 MiB (2%)
Title : 3/2+1
Language : English
Default : No
Forced : No