I am currently on firmware 3.2U and use the Transcend 4GB non-SDHC SD card mainly for Rock Band 2 DLC and GHWT DLC. Right now, on 3.2U, the card works perfectly with RB2/GHWT and with other games that want to save to the SD card. It also can be accessed in the Wii data menus with no issues. I have read that when others upgraded their firmware to 4.0/4.1 that it affected their use of this non-SDHC 4GB card. The Wii no longer recognized the card after the upgrade in firmware. They had to resort to other tricks to get it to work again (swapping different cards, waiting for certain times to insert the card, etc.), basically a lot of hassle. Even when they got it to work it didn't always keep working (the Wii would stop recognizing it again if they did certain actions). Also the Wii data menus are not able to access the card at all even though they got RB2 and GHWT to recognize it so they must use a second card in order for other games, Wiiware, and VC to save to an SD card. To others here that have upgraded from 3.2 to 4.0/4.1, do they verify these same issues? If these issues are true, then for me, this is a big reason to stay on 3.2 on which I can still currently play all games that are out there.