diff --git a/regex_patterns/Dolby Digital +.yml b/regex_patterns/Dolby Digital +.yml
index 06e59d8..5956e37 100644
--- a/regex_patterns/Dolby Digital +.yml	
+++ b/regex_patterns/Dolby Digital +.yml	
@@ -1,5 +1,5 @@
 name: Dolby Digital +
-pattern: \bDD(?:[+.]\d+|\d+\.\d+|P)?\b|\bE[-_. ]?AC3\b
+pattern: \bDD(?:[+.]\d+|\d+\.\d+|P|\+)?(?!A)\b|\bE[-_. ]?AC-?3\b
 description: ''
 tags:
 - Audio
@@ -7,7 +7,7 @@ tests:
 - expected: true
   id: 1
   input: Parks.and.Recreation.S03E16.Lil.Sebastian.1080p.AMZN.WEBRip.DD5.1.x264-NTb
-  lastRun: '2025-07-07T09:08:40.984150'
+  lastRun: '2025-07-07T13:36:04.211480'
   matchSpan:
     end: 65
     start: 60
diff --git a/regex_patterns/Dolby Digital.yml b/regex_patterns/Dolby Digital.yml
index 7e1be3b..b805b9f 100644
--- a/regex_patterns/Dolby Digital.yml	
+++ b/regex_patterns/Dolby Digital.yml	
@@ -1,5 +1,5 @@
 name: Dolby Digital
-pattern: \bDD(?![0-9]\.[0-9])[^a-z+]|(?<!e)ac3
+pattern: \\bDD[^a-z+]|(?<!e-)\\b(ac-?3)\\b
 description: ''
 tags:
 - Audio
@@ -7,7 +7,15 @@ 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'
+  lastRun: '2025-07-07T13:34:36.604739'
+  matchSpan: null
+  matchedContent: null
+  matchedGroups: []
+  passes: true
+- expected: false
+  id: 2
+  input: WALL-E.2008.2160p.UHD.BluRay.x265.HDR.DV.DD.7.1-Pahe.in
+  lastRun: '2025-07-07T13:34:36.604739'
   matchSpan: null
   matchedContent: null
   matchedGroups: []