name: Dolby Digital
pattern: \bDD(?![0-9]\.[0-9])[^a-z+]|(?<!e)ac3
description: ''
tags:
- Audio
tests:
- expected: false
  id: 1
  input: Parks.and.Recreation.S03E16.Lil.Sebastian.1080p.AMZN.WEBRip.DD5.1.x264-NTb
  lastRun: '2025-07-07T09:08:01.702437'
  matchSpan: null
  matchedContent: null
  matchedGroups: []
  passes: true