Thanks John.
I tried some generic no name 2 gig/1 gig usb thumb drives, I can record some songs but after a while, it starts giving me errors, "device its busy" or something like that so it stops in the middle of a recording.

Someone told me to use a known name brand stick, and I was trying to find out if I can use a USB HArd Drive instead and which its prove to be working...I'll try to see if I can find an approved USB thumb drive tomorrow, since I find a list approved from Yamaha[I found it this afternoon]
Thanks again