Ron,
This may be ideal for your needs.
There are companies that will put together custom CDG discs for you. You choose the songs you want.
One that comes to mind is
http://www.priddis.com
They charge $5.00 per song.
Put a pencil to that..
If you get three or four songs you really want on an average CDG you're lucky.
Let's say you buy a custom CDG with fifteen tracks at an outlay of $75.00.
To get those same fifteen tracks on regular CDG's you'd have to buy three or four discs at $20-$25 a pop, and have accumulated a lot of dead weight.
Your call, of course, but didn't know if you were aware of the availability of custom CDG discs.
Have fun,
George