If you thought that DVD's effect on film preservation and restoration was minimal -- or only for hard-core film nerds -- think again: CNN.com is running an excellent piece (including before-and-after comparisons of individual frames) about the restoration of Criterion's newSeven Samurai DVD that does a great job of articulating the challenges of repairing a classic -- without completely altering it, or falling into the abyss where the perfect becomes the enemy of the good. Criterion Technical director Lee Kline is quoted as saying "For the most part, you wish you had a few more weeks ... people are used to pristine. But if we did that, we'd never get it out." Has DVD made people expect perfection? And can you make an older film 'perfect' without losing its soul? I for one love the Criterion Samurai, right down to the flaws and scratches that remain -- but are there film fans out there who, in this bit-heavy, high-def day and age, would turn off a film that offered anything less than perfect image quality, regardless of how great the story is?