> For a given SKU Amazon takes the memory cards from its own inventory and inventory from all other resellers who have opted into the "Fulfilled by Amazon" prog

> For a given SKU Amazon takes the memory cards from its own inventory and inventory from all other resellers who have opted into the "Fulfilled by Amazon" program No. Sellers have to opt-in to co-mingle, so it's certainly not "all other resellers". Besides, I think co-mingle only applies to resellers's stock, ie Amazon stock and 3rd party sellers' stock aren't put together in the same basket -- although I could be wrong about that.