I had this same problem in KDE that was in MDK 8.1 The kde media player doesn't work at all. It crashes upon launch and also the Ksys-v init editor program doesn't work. it also crashes upon launch
In mandrake 8.1 i fixed the media player problem by replacing it with the kdemultimedia rpm from redhat and that made it work. I think it would be a good idea if it could be fixed befor any sort of "official" release ie 8.2
