Do DVD-Audio discs include “Region Codes” such as used in DVD-Video discs?
DVD-Audio does NOT include Region Codes. Therefore, all DVD-Audio discs will be playable on all DVD-Audio capable players. However, many DVD-Audio discs include DVD-Video components to provide compatibility with DVD-Video players. Those “objects or files” (usually Dolby Digital or DTS audio and short videos) could be restricted by Region Codes and may not be playable on all DVD-Video players.