My discovery kids digital camera says that the memory is full even though we have deleted all the videos and pictures. When I push the arrow, it says "no file". What is wrong with the memory?

I had the same issue with the camera saying "memory full" and "no file." It seems the delete button on the camera wasn't really deleting the files, because they were all there when I plugged into the computer. I had to delete them there and empty the trash, just as you said. It will be a pain if that's the only way to delete them rather than in the camera. I also wondered why the memory filled up so fast, but discovered my daughter was unknowingly making large movie files rather than taking photos. I had the same issue with the camera saying "memory full" and "no file." It seems the delete button on the camera wasn't really deleting the files, because they were all there when I plugged into the computer. I had to delete them there and empty the trash, just as you said. It will be a pain if that's the only way to delete them rather than in the camera. I also wondered why the memory filled up so fast, but discovered my daughter was unknowingly making large movie files rather than taking photos.