Multimedia

I have uploaded some clips, shot with DV, 16:9 anamorphic, PAL, processed in Quicktime.mov / Motion JPEG B, 1024 x 576, 25 fps. All have been approved, but as I see, they have been categorised as "Multimedia". Why is that?
Can somebody please explain?

My guess is that 720 x 576 with non-square pixels is what is considered the standard resolution for pal.

Clips that get classified as multimedia are clips that are different from the standard resolution for Pal, NTSC, HD720 or HD1080