Lag on 1080p playback for ONE video
 

Hi all! We've been thoroughly enjoying BS Player for a while now, but I've finally come across an issue that I'd LOVE to get resolved. When I play this one .mkv file, I get severe "lag", for lack of a better word. The video playback just slows for a second or two, then picks back up to normal. It happens throughout the movie it seems where there's lots of action. My specs should not be an issue as I have a quad core, 4GB RAM, and ati HD 3800 series card. This is the only video I've had an issue with, but it also works flawlessly in MPC-HC, so I'm assuming it's some sort of software issue. I have the 2.57 version and usually install with default settings. Should I install minimal codecs during the install? Which ones would i need for playing mkv, avi, vob, mpeg4, etc.? We love BS Player and the detached control panel, so I'd love for this video to work flawlessly like it does in other players. If video specs will help, here they are:

Format : Matroska
File size : 15.3 GiB
Duration : 2h 58mn
Overall bit rate : 12.3 Mbps
Writing application : x264.exe
Writing library : mkv2rls v1.3 (date: 2010 aug 28)

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=4, N=16
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 58mn
Bit rate : 10.8 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.217
Stream size : 13.1 GiB (86%)
Writing library : x264 core 107 r1745 4785e8e
Encoding settings : cabac=1 / ref=4 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-3 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=10782 / 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 : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 2h 58mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.88 GiB (12%)
Title : English DTS
Language : English