Okay -- So couple of things here :) First is the configuration of the Device under the options menu you can select from a few options. One of them is going to be the Eject command sending when you cue -- you don't need this with Mira so you would want to turn this off. Some servers require you eject before you cue -- as if they were a tape deck :)
Next -- The "play back" channels are the last channels. So with 5 Records your Play channels start at Channel 6, 7 and 8. When your setting up the Input and assigning the device you need to make sure that for the F channel you set to 6 for the Channel number.
#Carbonite