Disklavier

I have a Yamaha Mark II XG Player Planner and would like to be able to play the new CD 
software and the new PianoSmart discs.

However, I read on Carol Biegel's web site that many CDs aren't compatible because they are 
not A440 hZ. 

Will there be a way to work around this problem in the future so that my piano can play all of 
the PianoSmart software? Are there any alternatives to the DCD1 to allow me to play CD 
software on my piano? 

It seems like it might not be worth paying over $1000 to upgrade my piano if it won't be able 
to play 75% of the PianoSmart discs.

Any advice woudl be appreciated-
Rob