ashw92 on Something You Should Know About Blu-ray 3D: I haven't utilised the bundled 2D disc yet but back before my parents got a Blu-ray player it was handy to buy the double play edition and give them the DVD and keep the Blu-ray for myself. I suspect though that there are an awful lot of wasted discs out there.
This has however just given me a thought. It would be easy to buy a 3D/2D bundle, get a Blu-ray case, print off the artwork and sell the disc you don't need on ebay. Hmm... off to look at Blu-ray cases on Ebay.