I understand your delima. The Main Database holds standard Manuf. Brands and DiscIDs to make naming the songs much faster as it is automated. With a custom disc as you have, there is nothing we can do to help with the naming. Only you know what is there.
The BookID and Track# will give you a single number for your Song Book for your singers. You are desiring a modification to that and it is possible... at the expense of a bit more of your time.
I thought about this and the only thing you can do is accept the BookID-Track# we are set up to work with. We would have to rewrite the BookID code, and THAT... was THE most expensive part of the Hoster code. In other words, don't hold your breath for a rewrite of this. We're talking a very high expense.
I think your main problem is changing the way you number your songs. Your singers won't have a problem. Everyone else has accepted it and I encourage you to do the same. It is a mental thing that won't change your show at all.
I truly wish I could offer you a custom solution, but its not feasible... at least right now to help you getting into the system.
