Well for my Laptop 6515b , Fedora 9 proved to be more troublesome than Fedora 8 including kaffeine
The problem itself is not in kaffeine but in xine engine parameters
Go to Settings>Xine Engine Parameters>Video>Beginners Options xine in Auto mode was using xv causing entire system Hang whenever i played anything.So change it to xshm.Thats all!!!!!
In Real Player go to Tools>Preferences>Hardware
Disable XVideo, For me Alsa couldn’t be initialized. Hence RealPlayer 11 can be used on OSS.