Charles> I think this is falling down on the "dd" commands. AFAIK, Charles> "dd" will be ignoring the OOB stuff which is required by Charles> YAFFS. Go look in the mtd tools, I think there are some nand Charles> specific tools like damddump or some such that will also Charles> extract the OOB info. So are you saying that I won't be able to preload a YAFFS filesystem into my NAND flash unless my programmer can write OOB info???