just visited the site, expecting to see what was compatible w/ S750/950.

neither is included in dropdown box.

some packs I read about awhile ago -- notably, Brazil -- seem to have vanished! or if they're there, they are not compatible w/ the newer boards. wha???

it's unclear which work for which keyboard.

I think the expansion option is a plus selling point, and I was considering one seriously. but I'd rather not guess about compatibility!

George Kaye or anyone w/ connection to Yamaha folks, pls tell them about this -- it's baffling....

thanks
TM