Hi,
i'm fairly new to all this, but you can deffinately copy files onto your main memory have a look in mypad there should be some tabs at the top left which will be your storage devices if you tap the relevant storage device highlight the files you want then tap copy tap thr tab for you internal storage select or create a new folder and tap paste. Hopefully that should do it! I'm saying all this from memory as i'm at work and have only had my pad for 3 days and am still very much learning. If i'm wrong hopefully someone will be along soon to correct me