Affected by product delays and other issues, Blu-ray still has not outperformed HD DVD format amid higher amount of movie studios and consumer electronics companies that support the standard backed by Sony. To date, HD DVD still enjoys larger amount of players on the marker and considerably higher amount of content.
The difference between the Blu-ray and the HD DVD may seem negligible, but the war between the two formats may be outrageous. Both Blu-ray and HD DVD use 405nm wavelength laser to read data from the recordable media of the discs. However, the data layer of the Blu-ray discs is located 0.1mm from the disk’s surface, whereas the HD-DVD data layer resides 0.6mm deep from the disk’s surface.