1. what is "safe mode"? 2. what is "scrolling speed"? does it affect the gameplay speed of what you are playing? coz i have a feeling that each game i'm play with wood r4 1.28 runs a little faster than it should, (maybe it's my illsusion palying tricks on me) 3. what " save type" should I choose, the default of wood 1.28 is 512K, but no matter how I change it, after saving it, come back, it will still revert back to 512K, so weird, however, I notice that the actually game save for each game i have already saved for is 64K. Is all of this a bug or something? 4. Can I delete " autorun.inf" in my micro sd card?