I put a new memory card into my digital camera and it says,"memory card is unusable, insert new memory card". Why? The manual says it may need to be formatted. The camera won't give me the option. My camera is Kodak easyshare P880. The card isn't made by Kodak is this the reason?
You should connect it to your computer via a card Reader to have a try.
If the result is the same, you need a memory card recovery software to get your data back and buy a new one to replace it. (This freeware has ever recovered 90% of my inaccessible data from a phone memory card. You could try it, too.) Note:
1. Never attempt to put any new data on this card in case of rewriting the original data.
2. Never try to store your recovered data on the same card in case of recovery failure.
3. Never forget to buy a new one to replace it.
4. Never forget to back up your important data regularly in the future.