If the video is not showing up there are usually two reasons for this:
1) medieval2.preference.cfg file (found in Medieval II Total War main folder for vanilla) or the custom .cfg file (for mods) has the background disabled. To enable it, open up the cfg file with Notepad and find this line:
no_background_fmv = 1 Change "1" to "0" and the video should show. If there is no such line then add it yourself under the
[video] section.
2) If the video is still not showing then it is possible that the _m2_border.tga is overlaying it. This can happen only with mods. Open the folder "MOD-NAME\data\menu" and find the file
_m2_border.tga. Make a back-up of it and then edit the file with PS or whatever and make the middle part of it transparent, leaving the upper and lower parts untouched. The middle part is the part which will let the video show.
- If the BINK video compressor refuses to bink your video it is possible that you do not have proper codecs installed on your computer. Simply download
K-Lite codec pack, install it and the problem should be solved.
And that's all there is to it. If your video is still not showing then you have messed something up. Read again through the instructions carefully and hopefully you can get it right.