Javier Garcia

Hi, i have a Casio AP-620 and i want to transfer new sounds, rythms & samples. Where can i found new sounds to it or information to do it? i check the music.casio page and didn't found nothing about it, but appear info to expand other models of casio, do any of the other models expantions usefull for my ap620?. Thanks ! Regards from Chile ;) !