diff --git a/src/reader.rs b/src/reader.rs
index e5ac296..6864e93 100644
--- a/src/reader.rs
+++ b/src/reader.rs
@@ -33,9 +33,7 @@ impl<R: Read + Seek> Mp4Reader<R> {
             let header = BoxHeader::read(&mut reader)?;
             let BoxHeader { name, size: s } = header;
             if s > size {
-                return Err(Error::InvalidData(
-                    "file contains a box with a larger size than it",
-                ));
+                break;
             }
 
             // Break if size zero BoxHeader, which can result in dead-loop.