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I don't even know how many variations there were, but I do know there was a pioneer laseractive w/sega pac module, jvc x'eye, multimega, some japanese sega cd built into a portable radio, probably a bootleg or two.
The thing is - as far as I know, all of the stand-alone systems used both cartridges and cds. Maybe, in general, they should be on the list, but if you really dig down into gaming history, you'll see that most gaming systems only have one way to play games, atleast built into the systems. You either have carts, cds, or dvds. Sure, some may have parallel ports or expansion ports (saturn, the first ps1s) - I just don't see any successful gaming system rely on two different formats. Maybe I'm wrong.
If we wanted to go with multi-format systems, the Adam coleco would probably have been very close to the least sold systems. From what I gather, it only sold 93,000 units, and 60% of those were returned as defective. So, only around 30,000 units were really kept in households.
It's really weird how so many video game companies can claim they were actually unsuccessful in console X, Y , or Z though, even if they've sold several millions of consoles. |