There is really no point to make audio styles for s950's 64mb .Why did Yamaha do this by only adding 64mb I will never understand.It's a great keyboard and Yamaha has some nice expansions made,but you can only use one.
As I have said elsewhere on SZ, mirza, I was not impressed with the way the S950 implemented additional audio drum based styles, although, admittedly, what was already there did sound rather good to my ears.
In their stead, I would have preferred the S950 had additional (more) preset drum kit choices as they did on Tyros4 and CVP-609, but it's rather late to say that about it now.
Ian