there is a lot of discussion if one should shoot raw or jpg when taking digital images. i've always been a great believer of raw because of the simple fact that i'm still learning to use photoshop and having a 'digital negative' to go back to again and again as my skill-set and the technology per se improves is the only way. michael reichmann of luminous landscape takes the time to explain it much better than i would ever care to do in a recent article called "understading raw files".