For those interested in the nitty gritty details, we'll remind you that the capacity of a Blu-Ray disc is about 25GB, which is enough for about two hours of HD TV content or around 13 hours of standard TV. The double-layer will—surprise—double the capacity.
We should be seeing Philips's triple burner around the same time as the BW1000, meaning that at least you'll have two brands to choose from.