The inflexibility of these players is annoying. The thing I find most annoying is the use of a built in battery, rather than an easily swappable one that can be charged outside the player. The lack of variable speed playback(with automatic pitch correction) is so annoying when playing podcasts. When a speaker is speaking too slowly, when I am playing the podcast on my pc using Windows Media Player, I boost the play speed to 1.4x or 1.5x, and the pitch is automatically corrected. On my mp3 players, I can only boost the speed slightly(perhaps only around 20%?), and the pitch is not corrected, so the voice does not sound natural. Because of this, thefast setting is basically useless.
I would also like to be able to customize the display, and have what I want displayed, and be able to choose the font size.
