How do you import the audio tracks from Windows "My Music"

[ddouglass]

Maybe you have already used Audio and the diskID you picked? That would be the only way it would insert a BookID and grey it out.
Try Custom Assembly as the Brand and choose/type in a DiscID that isn't in the dropdown list. That should allow you to use your choice for BookID.
You should be able to check by doing a search for that 3132 BookID and see if anything is already imported under it.