The disc is showing full but I do not see any

did you definitely shoot images on this card? if you don't think you did, you can reformat the card and see if it will work then. i bounce back and forth between a couple of cameras and sometimes i fill a card with one camera and try it on the other and the other is not able to see the images. it knows there is no room left but can't read the files. did you try to put the card into and external reader and look through it on a computer? there might be other files on it that your d70 doesn't recognize that are taking up space. if you reformat and it still doesn't work it might be a defective card. one thing you might also want to check is if there is a firmware update for your camera. my d70 used to often read a card as full or there being a card error, i would have to pull the card out, restart it and put the card back in. it helped after i did the firmware update... you can usually find that support on the nikon site. you can often call and ask them questions without paying a fee as long as you are not sending it in for work. keep shooting :).