Unable to kill some processes

Hi,

I've been successfully using Ogle for ages now (great program, keep up the 
great work). But i've had a problem tonight trying to watch "School of Rock".  
It loaded ok and asked to select the language and i selected English ok but 
it would not progress from this screen so i killed the screen with "q".  I 
then checked what processes were left behind and i managed to kill everyone 
except for these two (see below). I've logged off and back on again, i've 
used my userid and root to "kill -9" but no success.  I'm obviously going to 
reboot once i've sent this email.  I expect the film to run once I've 
rebooted and i'll follow up the email to let you know.
Here's the sequence of events just before my problem.
I have been running a DVD just before this which was a TV series called "The 
Singing Detective". The DVD has a selection of episodes, i watched one and 
then pressed "q" to exit and then I popped in the "School of Rock" and 
reloaded ogle (its an icon on my KDE desktop that runs a shell script that 
contains "ogle -u cli /dev/dvd"

guest      4375     1  0 19:20 ?        00:00:00 ogle_mpeg_ps -m 65537
guest       4387     1  0 19:20 ?        00:00:00 ogle_nav -m 98306

I was just wondering why nothing can kill these processes.

regards

Ian