empty, aborting/no suitable access module

[ohnojulian]

So here is the crux of the issue:
I have several avi files, split into eleven files. m****.avi.001, etc.

I joined them all using Split&Concat (HJSplit for Macs) creating one file, m****.avi
Tried to open it in Quicktime, "not a movie file." I'd already downloaded Perian for QT, and wasn't really willing to fuss with it, so I turned to the almighty and powerful VLC and got:

ffmpeg: Seeking too far : EOF?
ffmpeg: av_open_input_stream failed
ps: cannot peek
main: no suitable demux module for `file/:///Users/*******/Desktop/m****.avi'

Which of course, confused the hell out of me. Was recommended by a good friend to try Mediainfo for Mac, and resulted in this joyous spit of knowledge:

*** MediaInfo Mac // Plain text file report
2008-07-05 23:42:42 -0700
Information for File: m****.avi

General / Container Stream # 1
Total Video Streams for this File -> 1
Video Codecs Used -> MPEG-4 Visual
File Format -> MPEG-4 Video
Total File Size -> 902 MiB
Video Stream # 1
Codec -> MPEG-4V
Codec Profile -> Streaming Video Profile/Level 1
Frame Width -> 512 pixels
Frame Height -> 336 pixels
Frame Rate -> 23.976 fps
Display Aspect Ratio -> 1.524
Interlacement -> Progressive
Codec Settings (Summary) -> BVOP
Codec Settings (BVOP) -> Yes
Codec Settings (QPel) -> No
Codec Settings (GMC) -> 0
Codec Settings (Matrix) -> Default
Bit Depth -> 8 bits
Video Encoder -> XviD0041

I tried to understand it, but being a little dim, I can't really figure out what codecs I need to finish this up and just watch the darned movie. Help? Please? If you need anymore info, feel free to reply, I hope I've provided enough.