Automatically changing modes on the DVD writer for K3b

[Donald T Hayford]

To get K3b to work I need to change the mode of the following devices to 
664 (or 666) from 644.

/dev/xpt0
/dev/cd0 and /dev/cd1
/dev/pass0 and /dev/pass1

Is there a way to do this automatically on boot-up?  Now I do it using a 
script that I run as root but, of course, I always forget to run the 
script before I run K3b.

Thanks
Don Hayford