The QuickTake 200 takes 2MB or 4MB 5-volt SmartMedia (SSFDC - "Solid State Floppy Disk Card") which are no longer made (you cannot use the newer 3.3-volt cards, nor 5-volt cards larger than 4MB). Your best bet may be to try eBay.
You can find some additional information and suggestions
here.
Your only bet may be eBay. on top of having a QT200 I have a Dr Sample sampler ( which you may also want to look up in descriptions when looking for cards) which uses these same cards. I nver got one for the sampler but when I bought the camera It came with an additional one. Si I got lucky. Keep looking! If you need to buy another QT200 with an extra card. Then resell the QT 200 to another Mac lover!
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QuickTake 200 Memory Card
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