Hi. I would like to buy some DVD disc. But how can I choose a good DVD disc? Which one should I buy: DVD-R/-RW or +R/+RW? Which brand? Dual-layer or single-layer? Which is better? compatibility issue? What storage (GB) should I buy? Are the storage volume the same for all DVD media for the same type? By the way, what's the difference between HDVD and Blu-ray? What do you think about HDVD? Better than Blu-ray, or worse?