I know at the local Walmart, the Zen V (1 Gig model) goes for around $75, it would let you categorize the language based on subjects, and it recharges through the USB port. Also, if you hold, not just push, the control stick to the left, it will rewind extremely well. In my opinion, this would fit all the requirements you listed, and probably a few extra.
Can someone recommend an mp3 player with the following features?
1. Excellent rewind button (I'm using it to learn a foreign language, so I'm constantly rewinding).
2. Not too expensive (1GB is fine).
3. Highly desirable but not absolutely necessary: recharges through the USB port. (This is because I'm planning to go overseas, where batteries are expensive and electricity is at a higher voltage.)
I recently bought the Creative Zen Stone but the rewind button was broken on it--tried another, and that was broken too.
Appreciate your input--thanks!