the disk drive in my ibook g3 is broken, is it possible to disable the drive so i can use an external superdrive instead?

the disk drive doesn't load up what ever is put into it and i am unable to fix it or replace it

when i plug in a superdrive into the usb port it won't work because the disk drive still takes precedence

is there any way to disable the drive so i can use my superdrive instead?

thanks,

matt