MPEG-1 Layer 2 Audio
For DVD products in PAL, MPEG-1 Layer 2 audio is compatible with all players. For NTSC
markets (North America, Japan), most (but not all) DVD players support playback of
MPEG-1 Layer 2 audio. If you create NTSC titles using MPEG audio, be aware that there
may be problems in playback on some players.
If you want to ensure that your data-compressed audio is compatible with all players for
NTSC, using the AC-3 format is recommended. See the next section for information on
encoding and authoring with AC-3 format audio.