I've never had a problem with DVD+RW's. I've been using one for Brawl ever since my original died.Tozarian said:Tried DVD-RW's which most people said were bad.... They were right, but it still didnt damage my lens.
I've also tested my many texture/menu/text hacks on it and it's worked fine (Saved me a few spindles of DVD's too)
At least 20 hours of gameplay on it and not one DRE.