Tag Archives: 5.1 channels

Do all videos use Dolby Digital (AC-3)? Do they all have 5.1 channels?

Dec 11th, 2009by dvdxplayer 2,038 views |1 Comments

Most DVD-Video discs contain Dolby Digital soundtracks. However, it’s not required. Some discs, especially those containing only audio, have PCM tracks. It’s possible –but rare– for a 625/50 (PAL) disc to contain only MPEG audio. Discs with DTS audio are required to also include a Dolby Digital audio track (in a few rare cases they have a PCM track). Read More »