hi all 1) I'm thinking of buying device using external memory like SD or SD mini. But as you know SD mini is bit expensive than SD. So is there any advantage if I buy a device using SD mine? otherwise I'm gonna buy SD device , cause I even don't have reader of it and no other devie using it. 2) I'm checking M3 reason? looks like it's best selling. many online stores out of stock. Is it right? 3) anyway I'm googling it. I'm gooing to play mostly emul game. Is it good idead buying M3 to play emul games? Thanks in advance.