I don't have a computer to check this with, so I can't verify it, but if it is true, it could only mean that the ROM is entirely compressed with something that 7zip was able to recognize (by that I mean most of it was compressed except probably a header and programming). Sounds kind of farfetched, but I guess stranger things have happened. O_o Hmm....I wonder what the overhead of such a compression schema would be (the entire ROM I mean)?
Oh, also, I doubt you would find this very often, decongamco. This pretty much has to be an out and out "once in a blue moon" happening.
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