It says Japan right on the chip...and its only certain games like gta:cw and castlevania series and a few others that have slowdowns in-game...and some games freeze like gta if it tries autosaving when i have the sd speed manually set too high...it autodetects my chip at 20 which games run fine at with no freezes, but gameplay tends to be a little choppy. I havent been able to run games properly above 23 manual speed.

 

I reformatted my kingston with the panasonic formatter, instead of autodetecting 20 its back to auto detecting 24 like when i first got it...do speeds decrease on chips if you have a ton of stuff on them? I only had like 400 some odd MB left for free space before formatting, I also tried setting the speed to 32 after I reformatted and it would not load gta:cw just 2 white screens...games still have noticeable slowdowns but not as bad, but still i want my shit to run like silk I have an A-data 8gb class 6 chip on the way, hopefully it works good.

 

Well I got my 8gig class 4 kingston off amazon, i got the kingston 8gb mobility kit, maybe that has something to do with it? blows my mind how you can set to 32 speed with the same chip and i cant go above 24...im hoping the adata chip is worth it, some test thing i read shows an 8gb adata with 1.6ms random access but the 4gig has .7 which i found out after ordering, not sure which class though... just hoping the 8gig adata runs flawless for me like it does for some people..if not ill have to get a 4gig adata or 1gig kingston...cant even play Mortal Kombat DS online without it getting all choppy on certain stages