Recently I have discovered that I can use other types of kernel in my R4 clone. It uses microSD (2GB). I was using the kernel that was developed by the team that created my R4 clone. Now they will not release newer versions of the kernel. The old kernel that I used is very bad, the saved game files have MSDOS names and the action-replay codes list is a mess. I tried DSTT TTMenu, it is a little slow to load the main menu, but it is better. I would like to know the best kernel that I should use in my R4 clone.