Version:           unspecified (using KDE 4.6.1) 
OS:                Linux

I think it's time for the section "media player" in the Default Applications configurations module, because you can't change the default player for every single file format and that is sometimes annoying.
For example when you try to play a wmv-file with a media player. Most of the listed player aren't supposed to play wmv files (Amarok -> music only, Banshee -> crashing, gnome mplayer -> doesn't support wmv, xine -> crashing, dragon player -> crashing, totem -> working here) and sometimes you can not remove these (in this case) unneeded "components" without removing a lot of other packages (because of the dependencies). Kmplayer is at the moment my default media player and it simply doesn't work all the time (for example with wmv files) and it would be better if I can set VLC for example as the default media player. Just VLC and totem is working with WMV-files, why are all these other media players pretend to work with wmv files but they aren't?
The issue here is not, that wmv isn't working, the issue is that these players are NOT working but listed in the list of default media players and that you can't revert this settings en masse (for multiple media file formats with just on click)

Reproducible: Didn't try