Perfect 1:1 DVD Copy

This article compares the technical specifications of HD DVD and Blu-ray Disc, two mutually incompatible, high definition optical disc formats that, beginning in 2006, attempted to improve upon and eventually replace the DVD standard. The two formats remained in a format war until February 19, 2008 when Toshiba, HD DVD's creator, announced plans to cease development, manufacturing and marketing of HD DVD players and recorders.[1]

AVCHD could be one of the reasons for Blu-ray Disc format to win. AVCHD is a consumer video format designed by Sony and Panasonic, members of Blu-Ray Disc Association, and is heavily based on Blu-ray Disc encoding and file structure. AVCHD recordings are compatible with most Blu-Ray Disc players, but incompatible with HD DVD players.

Other high-definition optical disc formats were attempted, including the multi-layered red-laser Versatile Multilayer Disc[citation needed] and a Chinese made format called EVD. Both appear to have been abandoned by their respective developers.