You mean this cryptic messy file system on the NWA series is a trade secret... I've been looking at the endless directories on the player and can't imagine why some of the album art is repeated 100 times spread over multiple directories, does not look very efficient. I also noticed all the dat files needed to manage just 4-8 GB of MP3s and only a few MB of ID Tag data. I'm crossing my finger for a firmware update and although I love the hardware it's crippled by it's software and will be the last sony player I buy just because I want to make sure I do my part and not let companies like sony make all there money without doing a little something for there existing customers state of mind. I love companies that use upgradeable firmware to make there customers feel secure by keeping them in the loop for at least a year or so after there initial purchase.