Doing a lot of reading and lurking but have yet to see what SRE really means. Also I see a lot of ROM terminology... JH3 JF7 and the like. I'm assuming those are different versions but they don't really seem to make sense. Also, the relationship between the ROM and the kernal as I see differences there. And there are versions of firmware. Just looking for the relationships and meanings. Might seem like a dumb question but I don't want to assume things.