I don’t have the source on my machine and it’s been so long since i have built it i dread even trying.
Anyways im sure it is the video not the audio as the audio plays while the video is broken on some of the attempts i made.
The class i posted above handles the null textures and catches the exceptions and continues so you will hear the music while its throwing exceptions to the console and displaying a white rectangle which does in fact happen on a lot of the video’s i converted and tested.
Im suspecting it has something to do with the width height or sar dar values which relate to that but something is probably just broken.
The trick with the wvm is to use the newer windows codec i think a couple videos i had to post reformat them to something else then to wmv to get them to convert to proper but most just worked.
Here is how i change videos over from one to the other and get the information shown.