I discovered this problem, but it cost me some S$200 on a new DS. I encountered this game sound distortion problem on an intermittent basis on many games. The quality of the game sound could be good on some days but very bad on others. I had the impression that my DS has developed a sound system problem. I bought a new DS and found that the problem did not actually go away. After more trial and error, I eventually discovered that the distortion of the game sound was attributed to the LRABdown soft reset. Every time after I activated the soft reset, the next game(s) that started will have a game sound distortion problem. This problem can be solved by switching off - then on again, using the on/off switch button. The quality of the game sound will return back to normal. I am using Acekard 2.1 with AKAIO1.3rcl. I tested the soft reset function with my old M3Simply and another SCDSone, the quality of the game sounds were all ok. There could be a bug in the soft reset function in the AKAIO firmware. I'm not sure about the official v4.13 as I have not tested it. The developer of AKAIO may wish to look at the feedback. Thks.