Hello John,
Plenty of suppliers do Sound Choice and Chartbuster as custom made CDG's usually with a minimum of 5 or 10 songs on a disc.
www.karaoke.com does the following:-
Priddis 3000 songs,
Stellar 800 songs,
Sound Choice 7500 songs,
Chartbuster 6000 songs,
Sunfly 6300 songs,
Top Tunes 3100 songs
You can only make compilations from one of the maufacturers on any one disc, you can't mix manufacturers.
Some only allow you 3 songs by the same artist, on any disc.,
Most firms charge $5.00 a tune
Priddis do single NEW releases before they release a compilation disc
www.karaokefreedom.com only do Sound Choice and only charge $1.00 with a maximum of 15 songs on a disc. I have dealt with this firm and can only report excellent service, fast delivery, even to the UK, reasonable postage and friendly support.
Some UK firms do "Customburn" CDG's usually from Sound Choice, Chartbuster and Sunfly from £2.35 a song
Incidentally Sunfly does a lot of British artists, a lot I'm sure you never heard of, but you do get some rare and weird choices to enliven your show.
Regards from across the pond.
Garry