I received my M200 yesterday on the Massdrop buy. like others above at $100 i could not resist. Initial impressions, - the sound quality is outstanding. the UI is not good but not as bad as everybody said. i am however having trouble loading files on. i initially put in a 128gb card with music on it. the system saw the directories but said there were no files to play. i reformatted in the device and then recopied files to it via the usb cable. The transfer rate is painfully slow. and on a couple of occasions when i thought i had copied files to a directory when i checked later the directory was empty. is there any magic i am missing here? is there a specific format i need to follow to store files?