It's somewhat random. We play 3 40 minute sets of material in the same club every Thursday. There have been some shows where the crash doesn't happen at all. If it does happen it's usually only once per night. Here's all of the specs of the video that crashed most recently:
General
Complete name : D:\Users\Craig\Desktop\Johnny Drama\JDTV FINALS\DJmedley9_15.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 77.0 MiB
Duration : 13mn 33s
Overall bit rate : 794 Kbps
Encoded date : UTC 2010-09-16 07:15:37
Tagged date : UTC 2010-09-16 07:15:37
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile :
[email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 13mn 33s
Bit rate mode : Variable
Bit rate : 599 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
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 : Interlaced
Scan order : Bottom Field First
Bits/(Pixel*Frame) : 0.058
Stream size : 58.1 MiB (75%)
Language : English
Encoded date : UTC 2010-09-16 07:15:37
Tagged date : UTC 2010-09-16 07:15:37
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 13mn 33s
Bit rate mode : Variable
Bit rate : 192 Kbps
Maximum bit rate : 301 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Stream size : 18.4 MiB (24%)
Language : English
Encoded date : UTC 2010-09-16 07:15:37
Tagged date : UTC 2010-09-16 07:15:37
If it's ok I'd like to PM a link to the video (it's content that I'd like to not have in the wild) Also if it helps the laptop is running Windows 7 32 bit and FFDshow is being used to decode the H.264 and AAC audio within the video.