diff --git a/MP4/box_mp4a.cpp b/MP4/box_esds.cpp
similarity index 100%
rename from MP4/box_mp4a.cpp
rename to MP4/box_esds.cpp
diff --git a/MP4/box_mp4a.h b/MP4/box_esds.h
similarity index 100%
rename from MP4/box_mp4a.h
rename to MP4/box_esds.h