diff --git a/regex_patterns/x264.yml b/regex_patterns/x264.yml
index edf0eea..604e866 100644
--- a/regex_patterns/x264.yml
+++ b/regex_patterns/x264.yml
@@ -1,6 +1,10 @@
 name: x264
-pattern: ^(?!.*(?i:remux)).*([xh](\.?264)|DVDRip)
-description: 'An open source encoder that produces H.264 videos. '
+pattern: ^(?!.*remux)(?=.*(?:\bDVDRip(?!.*\b(?:XviD|x265|AV1)\b)|\b[xh]\.?264\b)).*
+description: "An open source encoder that produces H.264 videos. \n\n- Ensures `remux`\
+  \ is not present anywhere\n- Matches both `x264` and `h264` (assuming misclassification\
+  \ if `remux` is absent)\n- Matches `DVDRip`, **only if it is NOT followed by** `XviD`,\
+  \ `x265`, or `AV1`\n- False positives may occur with multiple sources (e.g., `DVDRip`\
+  \ and `BDRip` with varying encodes)."
 tags:
 - Encoder
 - Codec
@@ -8,73 +12,65 @@ tests:
 - expected: true
   id: 1
   input: Dan Da Dan AKA Dandadan S01E10 1080p CR WEB-DL AAC 2.0 x264-SubsPlease
-  lastRun: '2024-12-07T00:22:39.865345'
+  lastRun: '2025-02-15T15:18:11.869122'
   matchSpan:
-    end: 59
+    end: 70
     start: 0
-  matchedContent: Dan Da Dan AKA Dandadan S01E10 1080p CR WEB-DL AAC 2.0 x264
-  matchedGroups:
-  - x264
-  - '264'
+  matchedContent: Dan Da Dan AKA Dandadan S01E10 1080p CR WEB-DL AAC 2.0 x264-SubsPlease
+  matchedGroups: []
   passes: true
 - expected: true
   id: 2
   input: Life of Pi 2012 1080p BluRay x264-SPARKS
-  lastRun: '2024-12-07T00:22:39.865345'
+  lastRun: '2025-02-15T15:18:11.869122'
   matchSpan:
-    end: 33
+    end: 40
     start: 0
-  matchedContent: Life of Pi 2012 1080p BluRay x264
-  matchedGroups:
-  - x264
-  - '264'
+  matchedContent: Life of Pi 2012 1080p BluRay x264-SPARKS
+  matchedGroups: []
   passes: true
 - expected: false
   id: 3
   input: Scrubs (2001) S04 REPACK (1080p AIUS DVDRip x265 10bit AC3 5 1 English -
     JBENT)[TAoE]
-  lastRun: '2024-12-07T00:22:39.865345'
-  matchSpan:
-    end: 43
-    start: 0
-  matchedContent: Scrubs (2001) S04 REPACK (1080p AIUS DVDRip
-  matchedGroups:
-  - DVDRip
-  - null
-  passes: false
+  lastRun: '2025-02-15T15:18:11.869122'
+  matchSpan: null
+  matchedContent: null
+  matchedGroups: []
+  passes: true
 - expected: false
   id: 4
   input: Wallander UK S01-S04 DVDRip XviD BDRip x264-Scene (2008-2016)
-  lastRun: '2024-12-07T00:22:39.865345'
+  lastRun: '2025-02-15T15:18:11.869122'
   matchSpan:
-    end: 43
+    end: 61
     start: 0
-  matchedContent: Wallander UK S01-S04 DVDRip XviD BDRip x264
-  matchedGroups:
-  - x264
-  - '264'
+  matchedContent: Wallander UK S01-S04 DVDRip XviD BDRip x264-Scene (2008-2016)
+  matchedGroups: []
   passes: false
 - expected: false
   id: 5
   input: Rugrats S05 480p DVDRip Opus 2.0 AV1-Jenkins
-  lastRun: '2024-12-07T00:22:39.865345'
-  matchSpan:
-    end: 23
-    start: 0
-  matchedContent: Rugrats S05 480p DVDRip
-  matchedGroups:
-  - DVDRip
-  - null
-  passes: false
+  lastRun: '2025-02-15T15:18:11.869122'
+  matchSpan: null
+  matchedContent: null
+  matchedGroups: []
+  passes: true
 - expected: true
   id: 6
   input: _Summer S00 JAPANESE 480p DVDRip DD 2.0 x264-Tsundere
-  lastRun: '2024-12-07T00:22:39.865345'
+  lastRun: '2025-02-15T15:18:11.869122'
   matchSpan:
-    end: 44
+    end: 53
     start: 0
-  matchedContent: _Summer S00 JAPANESE 480p DVDRip DD 2.0 x264
-  matchedGroups:
-  - x264
-  - '264'
+  matchedContent: Summer S00 JAPANESE 480p DVDRip DD 2.0 x264-Tsundere
+  matchedGroups: []
+  passes: true
+- expected: false
+  id: 7
+  input: Some.Movie.2023.REMUX.1080p.BluRay.x264
+  lastRun: '2025-02-15T15:18:11.869122'
+  matchSpan: null
+  matchedContent: null
+  matchedGroups: []
   passes: true