Have you tried opening it? The cable's must be tiny. try looking at the connection. maybe it has broken. If its the logic board. Use it as a cool little server :D.
Right. Why on earth would you want to use WMV? It really annoys me when I find a video in WMV. It sucks. Why do people use it. The reason why i dislike it is not because Microsoft make it. Its bad because Microsoft make it.
Rant over. :P
I would personally use Photoshop. Record an action. While your there. do auto levels, contrast... and resize it. Then select a load of images, then batch it :P
(if not what fulmar said :P)