@mmhmjanssen wrote:
It looks like the problem is related to the type of card, because with an “old” 2GB card the problem didn’t occur. Could be the memory size of the card or the speed.
As I said before, if you have a Class 10 card, it has been reported by numerous people (on more than just this forum; and by owners of different players, not just SanDisk) that they are not ideally compatible with mp3 players. Your 2GB card is a Class 2. Class 4 works too, but (various) problems can happen when using Class 10.
Faster is not always better. 
