Right now I have 2 hdds in the primary and secondary positions. i also have two dvd burners in their rightful spots. I want to take out the master dvd drive because its old and replace it with a hard drive. so i was going to take the slave dvd drive and make it the master and make the new hdd the slave. can i do that or does it have to be a some type of media drive as a slave if there is one as a master?