They are all just SanDisk. Not the Ultra. But I've just competed some other tests to see what might be going on. I've formated one of the new cards, a card I usually use in my digital camera, and a card I normally use in the cuddeback that works all on the computer. I tried each one back in the normal digital camera and the cuddeback. Both the ones that normally worked, still worked in both the cuddeback and the normal digital camera. The new card that had been giving me Error--CamError in the cuddeback, continued to do the same in the cuddeback and when placed in my normal digital camera, I got a Card Error. It's not looking good for the new cards. I'm getting more and more convinced that they got juiced somehow coming through the mail. The only thing I have left to do that will convince me is to go to WalMart and buy a new card and try it in my normal digital camera and the cuddeback. If it works, I'll be convinced that it's the cards. If it doesn't, well, something really wierd is happening. I'll let you know when I perform the test. I probably won't get to try it until at least this coming Monday as I have to go to bed now because I have to get up early for work tomorrow and as soon as I get home tomorrow, I'm heading to the farm to get some farm work done for the weekend. I won't be back home until late Sunday night. Thanks for all the help, guys. I think we're going to whip this problem after all.