iTunes thinks videos are music files.

Summary: Music video is displayed as a regular song. No video icon next to title and only Media Kind options are "Music" and "Audiobook"

Okay, I'm kinda picky about my iPod.
I like to watch music videos when I work out so I like to have them all in the "movies" section on my iPod.
I recently moved my iTunes folder to my d: to clear up room on my c:, and opened back up my old library.
I was in the process of updating the song locations, when I realized a music video I had just purchased off iTunes was missing from the "movies" section.
I located it in the music section, so I figured I'd change the media type back to Movie from Music Video, however, when I tried, the only options it gave me were "Music" and "Audiobook".
When I tried to play the video, it played the video, but iTunes is not recognizing it as a video.
Only as a music file.
It doesn't even show the little video icon next to the title.
Does anyone know how I might change this back?

Thanks for your help.