Thinking of buying the Sony NW-HD3. I've read a lot of the threads here but I can't see a specific answer to a couple of q's....if the answers are out there already then apols for the repetition! Anyway, Q1: I use Windows Media Player and have lots of playlists saved, in wpl format. Will the NW-HD3 recognise these or do I need to start again? Q2: most of my playlists are based on star ratings, are these ratings recognised in SS3.1? Q3: I read on a review on Amazon that the facility to charge via the USB port doesn't work and that you have to have the adapter plugged into a socket anyway. Is this true, cos I was thinking of buying one from the US. Q4: Would there be any issues with buying one from the US, other than the plus problem? thanks!