Which is worse to overexpose or underexpose pictures on my digital camera?

Which is worse to overexpose or underexpose pictures on my digital camera?

Mark Comon (Vice President, Paul's Photo, Torrance, CA) gives expert video advice on: What does my digital camera's "manual exposure" mode allow me to do?; How do I change the shutter speed on my digital camera?; Which is worse to overexpose or underexpose pictures on my digital camera? and more...

You want to get the exposure right on. With a digital camera, though, overexposure is death. If you overexpose your image, you have no data because everything is thrown into the white. So on a digital camera, you want to get exposure right down the middle if possible. But, if there has to be an error, you have to go toward underexposure because the dark areas can be salvaged somewhat in Photoshop. Light areas are lost and gone forever.