I have now 2.3 GB on my player and everything seems to work properly. I will fill it to 4GB when I got the time (actually dont have USB 2.0 on my PC xD).
Update coming soon!
Offtopic: Huge credits to the administrators/moderators for their polite and nice answers. Been viewing a lot of threads and youre still nice and calm when the same question is being asked for the 5th time
Thank you.