Full description not available yet.
  
  Currently (spring 2002), everything what we know about Blu-Ray is based on speculations as the format doesn't exist yet.
  
  Basically Blu-Ray is a name for a new DVD standard which uses blue-violet laser instead of old red laser discs used in CDs and in DVDs. This allows manufacturers to store more data using the same amount of disc surface.
  
  One Blu-Ray disc will hold appx. 27GB of data (compared to 4.36GB on regular DVD) on one side/layer of the disc. It is developed mostly because Japan is going to start digital terrestial television broadcasting in beginning of 2003 and consumers will demand a high-quality recordable media for their new high-definition medium.
  
  Video will be stored using MPEG-2 technology, just like in DVD-Video discs, but in much higher bitrate. Currently DVD-Video discs can have a bitrates upto 9.8Mbps, but Blu-Ray discs support bitrates as high as 36MBps.
  
  For more tech specs, visit this site