Emax

So I was starting to actually try and use my emax 2 this last weekend,  
and ran into trouble.

Any Emax 1 disk I try and load, it starts loading and says "Out of  
Sample Memory".
But Emax 1 only has 512K. So why can't the Emax 2 use an Emax 1 disk?

Am I missing something?


Regards,
Ted