David H. Hartman , Aug 11, 2006; 03:40 p.m.
You can check the file size, the space the image takes on your computer, with your computers operating system. My guess is you dont know how to use it well. Many programs like Nikon View and IrfanView can give you the image size which will be a little smaller. Forgive me if Im wrong but it sounds like you need to do some serious studying to better use your camera and computer. This is such a simple question to answer with just a few clicks of your mouse. The answer is on the computer you set this message with.
PS: Im not a D70 owner so I cant check my files to advise.