diff --git a/custom_formats/AAC.yml b/custom_formats/AAC.yml
new file mode 100644
index 0000000..27b2489
--- /dev/null
+++ b/custom_formats/AAC.yml
@@ -0,0 +1,138 @@
+name: AAC
+description: Matches 'AAC' Regex Pattern and negates any other audio types that might
+  conflict.
+tags:
+- Audio
+conditions:
+- name: AAC
+  negate: false
+  pattern: AAC
+  required: true
+  type: release_title
+- name: Not Dolby Digital
+  negate: true
+  pattern: Dolby Digital
+  required: true
+  type: release_title
+- name: Not Dolby Digital +
+  negate: true
+  pattern: Dolby Digital +
+  required: true
+  type: release_title
+- name: Not DTS
+  negate: true
+  pattern: DTS
+  required: true
+  type: release_title
+- name: Not FLAC
+  negate: true
+  pattern: FLAC
+  required: true
+  type: release_title
+- name: Not PCM
+  negate: true
+  pattern: PCM
+  required: true
+  type: release_title
+- name: Not TrueHD
+  negate: true
+  pattern: TrueHD
+  required: true
+  type: release_title
+tests:
+- conditionResults:
+  - matches: true
+    name: Dolby Digital
+    negate: false
+    pattern: Dolby Digital
+    required: true
+    type: release_title
+  - matches: false
+    name: Not AAC
+    negate: true
+    pattern: AAC
+    required: false
+    type: release_title
+  - matches: false
+    name: Not Dolby Digital +
+    negate: true
+    pattern: Dolby Digital +
+    required: false
+    type: release_title
+  - matches: false
+    name: Not DTS
+    negate: true
+    pattern: DTS
+    required: false
+    type: release_title
+  - matches: false
+    name: Not FLAC
+    negate: true
+    pattern: FLAC
+    required: false
+    type: release_title
+  - matches: false
+    name: Not PCM
+    negate: true
+    pattern: PCM
+    required: false
+    type: release_title
+  - matches: false
+    name: Not TrueHD
+    negate: true
+    pattern: TrueHD
+    required: false
+    type: release_title
+  expected: true
+  id: 1
+  input: Un-Ex You 2025 1080p NF WEB-DL DD 5.1 H.264-FLUX
+  lastRun: '2025-07-13T15:09:35.674140'
+  passes: true
+- conditionResults:
+  - matches: false
+    name: Dolby Digital
+    negate: false
+    pattern: Dolby Digital
+    required: true
+    type: release_title
+  - matches: false
+    name: Not AAC
+    negate: true
+    pattern: AAC
+    required: false
+    type: release_title
+  - matches: true
+    name: Not Dolby Digital +
+    negate: true
+    pattern: Dolby Digital +
+    required: false
+    type: release_title
+  - matches: false
+    name: Not DTS
+    negate: true
+    pattern: DTS
+    required: false
+    type: release_title
+  - matches: false
+    name: Not FLAC
+    negate: true
+    pattern: FLAC
+    required: false
+    type: release_title
+  - matches: false
+    name: Not PCM
+    negate: true
+    pattern: PCM
+    required: false
+    type: release_title
+  - matches: false
+    name: Not TrueHD
+    negate: true
+    pattern: TrueHD
+    required: false
+    type: release_title
+  expected: false
+  id: 2
+  input: Un-Ex You 2025 1080p NF WEB-DL DD+ 5.1 H.264-FLUX
+  lastRun: '2025-07-13T15:09:35.674140'
+  passes: true