I am using a 2Gb Kingston for my R4DS and i noticed that every now and then the files on the R4 get corrupted. Most specifically, my files for the background (i.e. background1.bmp). So I took it, formatted it and replaced the files. A few days later my TTMenu folder is corrupted as well, again, only the image files. I also recently downloaded GBAExploader for my EZ Flash 3v1. Does anyone know if its the the Kingston or the GBAExploader app causing the corruption of the image files? I have a SanDisk 1 Gb and never experienced any corruption with it so I've been thinking it was the Kingston but the fact that only my image files get corrupted is confusing. I haven't used the GBAExploader app with the Sandisk. And yes its an official R4. Its not one of those silly clones.