What are the differences between Blu-ray and HD DVD ?

Blu-Ray and HD-DVD, as I expect you know are the next generation in film viewing. By using a shorter more accurate blue laser instead of the standard red laser more information can be stored on the same size disk. This makes them ideal for high definition films. The main difference between them is capacity, Bluray can hold 25Gb on a single layer disk, and 50Gb on a dual layer disk, whereas HD-DVD is only able to hold 15Gb single layer, and 30Gb dual layer. HD-DVD disks are more reliable than BR disks, though only marginally so. Another point worth looking at is the price of the players. Currently a HD-DVD player is around £350 GBP, whereas a Bluray player is around £450 GBP. A much more sensible idea is to buy either a PS3 (£400-ish with bluray player built in), or a XBox 360 (£300-ish with expandable HD-DVD drive). Pay around the same price for a HD player and get the ability to play games as well. LG are supposedly developing a player which will play either HD-DVD or Blu-Ray. I heard about this a month or so ago, and don't know what stage they are at. As it stands, things are very tight, however I would say HD-DVD is currently more available and cheaper.