Donny...you are getting sleepy...your eyes are getting heavy...listen to me, Donny, listen to the master...Donny, buy a PA3X and dump the PSR-S910 to someone who will appreciate it's great features....Donny...you don't have to worry...the Korg has a fine SMF player and will play MP3's...Donny you must get the Korg as soon as possible.
Now, when I snap my fingers, you will remember nothing, but at your first opportunity you will go to Frankie's and buy a PA3X at full retail...hey, Frankie gotta make a living!
Good luck and may God Bless You.
Ian