Enhanced Versatile Disc declared national standard in China - CD Freaks.com EVD's physical specifications are like that of a DVD with a 12cm disc diameter, same UDF file system and disc capacity of around 8.5GB. In fact an EVD can even be read in a PC’s DVD-ROM drive. [...] By using these alternative codec’s, the overall royalty charges per EVD player are less than one-fifth of that than for each DVD player. Besides different codec’s, the EVD format supports HDTV due to ON2's much more efficient video compression compared with MPEG2 as used on DVD. The EAC audio format supports 1, 2 and 6 (5.1) channel configurations.