Thank you for the quick respond.
I purchase my ES used without the disc,however I download the manual,but it useless without the disk.Is there anything can be done just to download Power Piano?
Thank you.

Find the three CD-ROM items in this ZIPPED link (283MB):

https://www.dropbox.com/s/qdu5junoxk6m8sj/MotifEScdrom.zip?dl=0

This includes:
PATTFILE - DANCEPOP.W7P/.W8P; PLAYPATT.W7P/.W8P; and RnB_ROCK.W7P/.W8P
VOICEDAT - PLAYERS.W7V/.W8V; SYNTH.W7V/.W8V; TREASURE.W7V/.W8V; WINDINST.W7V/.W8V
WAVFILES - assorted Drum groove library

Enjoy... I'm sure the PowerGrand is found in the VOICEDAT folder, most likely in the "Players.W7V/Players.W8V" file combination.

Thanks so much!