Hello!..First off, let me say thank you to Artemio and everybody here for all the wonderful information and exchange of ideas that goes on around here..there is nothing more rewarding than learning something new!..If Roland had any sense, they would let you guys handle all the research and development aspects of the ENTIRE Fantom line!!! unfortunately i am brand new to ALL this stuff as im a guitar player (alright, who threw that tomato! :) I've been saving up for this thing for quite a while now!..Anyway, the Fantom XR is the first sound module/sampler i have ever owned or even tried..I know nothing at all about this thing, but i want to get some good advice so i can do right by it.. I just shipped out my XR today to have the motherboard replaced, and to have it updated to the new OS "upgrade"..Here's my question(s)..I want to maximize the XR's sampling capability and features, since thats what i really wanted it for, but i'm not really sure how to do this..I read in one of the other threads something about DIMM memory, but i do not know what that means..If somebody would tell me what parts i need to buy to max out the sampling features of the XR (and also the best manufacturer(s) of these parts), i sure would appreciate it!..also, how does this sampling thing work?..do the samples stay on the machine until i remove them, or do i have to load them new everytime i need them?..and lastly, how does this all work for live gigging?..thanks you guys!