Index: Source/Resource/Text/DataBase/CodecID_General_Mpeg4.csv
===================================================================
--- Source/Resource/Text/DataBase/CodecID_General_Mpeg4.csv (revision 5518)
+++ Source/Resource/Text/DataBase/CodecID_General_Mpeg4.csv (working copy)
@@ -1,6 +1,7 @@
 M4V ;MPEG-4;;;;
 isom;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;Base Media
 iso2;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;Base Media
+iso4;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;Base Media
 mp41;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;Base Media / Version 1
 mp42;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;Base Media / Version 2
 avc1;MPEG-4;;;http://www.apple.com/quicktime/download/standalone.html;JVT