As I have no idea what format(s) your student film (all component bits) is in I'll answer generically
Whenever I try and work with any 'non-.AVI' format I continually run into stream, codec, translation, sound, video, etc .... errors. Especially if I am mixing different video formats in one timeline with added stills and imported soundtracks and adding transitions througout.
The solution I always use is to convert, one at a time, each video clip to a standard .AVI (so they are all the exact same format) and make sure all imported pictures are the same size (and a suitable size relative to my video output specs), and ensure that all my audio tracks are the same audio data rate.
After 'standardizing' all my 'input' pieces, only then do I put my project together.
hope this helps
I did notice that you said this - but - are you trying to use a .WMV in an animated menu? or maybe an animated .GIF or video on one of your buttons?
I find this a little strange seeing as I have exported my footage from Premiere Pro 1.5 in AVI format.
My System Specs:
Cameras: 2 x Canon XL1s
Computer: Dual Intel Xeon 2.8Ghz processors (hyperthreaded) - Intel SE7505VB2 mother board - 2 Gb PC2100 RAM kingston -Adaptec FireConnect 4300 -2xseagate 10K scsi hdd 150G ea -2xseagate 7200 ide hdd 200G ea - Plextor PX-708A DVD burner - ATi Raedon 9800Pro video with Dual SUN 21\" monitors - Sound Blaster Platinum live!
Software: Windows XP Pro with SP2 - Pyro Pro (adobe\'s premier pro, encore DVD, and audition bundle)