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I think N64 games were plenty involving on those cartridges, and how big were thier memories? Even originally?
The N64's base cart size was 32 megabits. The biggest ever N64 cart was 512 megabits, used by Resident Evil 2-64, and Ogre Battle 64 (IIRC). But the larger number of "big N64 games" used 256 megabits.
The 64DD was
supposed to deliver 512 megabit disks, with a whopping 304 megabits of that being potentially set aside for writability (Sony's PS2 memory card is 64 megabits), at a low cost, launching shortly after the N64's launch, but after Square and Enix bailed on the N64, the 64DD pretty much died on the drawing board.
BTW, FF7 could've fit on a 64DD disk (or a 512 megabit cart) with absolutely zero compression, if only it didn't have two CDs full of FMV. The PC version of FF7 clearly proves it.BTW, you could also potentially do multi-disk games with the 64DD, of course.The GameBoy Advance has a minimum cart size of 32 megabits (BTW, most "big SNES RPGs" were 32 megabits). It's current biggest games are (last I heard) 128 megabits. The biggest cart possible on a GBA is 256 megabits, although the GBA-SP can handle bigger (even though that would be pointless).
The 128 megabit GBA carts came out a while ago, so I wouldn't be surprised if the 256 ones become available any time now (if they aren't already).
Nintendo has said the DS "cards" will be more than 1 gigabit, but they don't seem to have said if that's the base size, or the maximum size, or just what they think the average will be.
BTW, after 256 megabits, comes 512 megabits (assuming it keeps doubling), and after 512 megabits comes 1024 megabits, which is one gigabit.Considering that Nintendo is reinventing a second input slot for the DS, it must have some sort of payoff for Nintendo to warrant the extra cost, so you'd think DS cards would have to be significantly cheaper and/or bigger than previous GameBoy carts (which could already be carrying technological "baggage" because of their classic design). And Nintendo said
more than 1 gigabit, so I'm guessing that's the absolute minimum. Which would be sweet. I'm just hoping that they're not expensive, but I guess we'll find out about that soon enough.
Edit: According to nintendo.com, Ogre Battle 64 was 320 megabits, and "the second-largest game in N64 history". So it was bigger than 256 megabits, but was some sort of "custom" size, not 512 megabits. RE2-64 was still 512 megabits.