Sure, if you encode cleverly. That is the essential difficulty of the problem which he glosses over (note that he explicitly says that he will store the differe

Sure, if you encode cleverly. That is the essential difficulty of the problem which he glosses over (note that he explicitly says that he will store the differences as 4 byte numbers). Getting it under 1.5MB (or even 1.1MB) is probably easy, but I have yet to see an encoding which is sufficiently compact to fit in 1MB.