My mp3 player is broken , so I want to change it for an mp4 player . Can you offer any advice about which brand and model to buy ?   An mp4 player ? why don't you buy a new cell phone ? You can find an mp4 player inside any of the latest cell phones . mp4 ?   Oh , that's a good idea . Perhaps I should have a try .   Look at my cell phone . I can listen to music , watch movies , take pictures , play games , surf the web and download documents . It's just like a PAD .   That's cool . I can use the computer and the internet pretty well , but I'm a little bit slow in the latest trends of digital products .   That's Ok . you know , digital devices are becoming smaller and easier to carry , and they won't cost you too much . 