It's a nice unit - small, light and it sounds very good. Why, however, have a 1 GB unit that only allows 255 entries? Try as you might - once you hit 255 entries (folder names and filenames each count as an entry) you can not add another song no matter how much memory you have left. I have 256 meg left and my unit can not accept any more songs.Let's hope PNY comes up with a firmware fix.Customer Service for this unit does not exist - only a FAQ which does not address this issue.