I want to copy computer files to tablet storage. I need to know what type of computer files can go into each of tablet folders, i.e. esub file gets moved into EBOOK folder. I uploaded a .pdf file to ebook folder but it does not show anywhere. Is there someplace I can get better instructions re copy/upload to tablet folders? The manual for the tablet gives only how to connect to a computer. which I got that pretty good. Thanks for any help you can offer.