Reading the Length Of A Video File

[SubScriptZero]

Hi,

Is there a way to read the length of an .AVI file that is being played and then make the program wait till said .AVI file has finished playing before calling the next sub procedure?
Reason is so that in the next procedure another video file can be played immediately after the first file has finished playing.

Eg;

Play Avi file
(Read Length)
(Then wait time = length of AVI file)
Call Next Procedure

Any help would be great as I am a bit out of my depth...

Thanks,
Sam