diff --git a/introduction.md b/introduction.md
index a52aaa6..929042b 100644
--- a/introduction.md
+++ b/introduction.md
@@ -21,6 +21,10 @@
 * 3GP
 * MPG
 
+### Subtitles
+* CEA-608
+* WebVTT
+
 ### Supported Unity Versions
 * 2020
 * 2021