I was bummed by that, too (although I never plannes to buy a Tyros): it has the flash board option, but the Motif sample libraries cannot be used for it... Installing piano multisamples yourswlf must be painstaking, a good piano waveform has got individual samples for all 88 keys in several velocity layers... (the Roland SRX 11 piano therefore has 704 samples, 88 keys x 4 layers x 2 for left/right).