[Lonman]

Sound Choice hasn't produced anything new in a couple years, however rumour has it they do have some new stuff in the works, however it will probably be duplicates of what other already put out and not anything 'new', just new to their catalog i'm willing to bet.
Chartbuster has been releasing alot slower as well. They didn't have anything between Oct to Dec, Jan & Feb they released Pop & Country discs - however only with 8 songs each, down from the 12 they were doing.
Pop Hits Monthly is still releasing monthly - however their stuff seems to be more fluff just to make sure they have something out, not much of the way of major hits.
Sunfly is releasing monthly, however theirs is geared more toward the UK market and not alot of heavy US hits on those unless they get popular over there.
All Star karaoke seem to be doing the best as far as more radio friendly hits each month, but just not very many of them.
Many of the UK manus are producing new, but again more targeted toward UK hits, if US hits get popular over there, they will make them as well.
Karaoke-Version is actively making new music - new and old.