I've never got round to getting an MP3 player, but recently discovered the MP3 facility on my Kindle and enjoyed playing around with it. As I've used up most of the memory on the Kindle, I'm thinking of getting a proper MP3 player. I don't know anything about them, so haven't a clue which ones are any good. I'd be downloading some music, but also a lot of BBC podcasts and audio books, which I guess would use up a lot of space. Any recommendations? Also, I only found out this morning, after doing a bit of googling, that MP4 isn't the latest version of MP3 (which I'd assumed it was), but is actually something completely different. Which one is best to get?