You will never run out of film with your digital camera but you could easily run out of memory! You need to have a basic understanding of RESOLUTION and CARD CAPACITY.
Resolution and print sizes
* Recommended size for Internet transmission. Use 640x480 @ 72 dpi.
** Ink-jet print size
2. Try This! Make sure your camera is turned OFF. Locate storage media (CF card or similar). Remove the card). Check the capacity in Mb. Put the card back in carefully.