Toast - Burning Cd Question

Question about toast,

i got a DVD RW in my power book.
and when i go to burn on a dvd it automaticly closes. Is there anyway i can take this check mark off so that it doesn't auto close? so i may add stuff later on? or is that not allowed??? (the check mark is on close but its grayed out so i can't remove it)

also. when i put a blank CD in, it doesn't mount, How come?
after im done burning it it mounts. but the blank on one.

Pls help!
thanks

ok cool.


but how about when i put a blank cd in how come it doesn't mount like it used to?