--- /orig/filehandler.cc	2003-01-15 07:41:09.000000000 +0200
+++ /fixed/filehandler.cc	2005-05-03 02:00:54.000000000 +0300
@@ -498,7 +498,7 @@
 	fail_null(avi = new AVI1File);
 	if (avi->Open(s)) {
 		avi->ParseRIFF();
-		if ( ! avi->verifyStreamFormat( make_fourcc( "dvsd" ) ) )
+		if ( ! ( avi->verifyStreamFormat( make_fourcc( "dvsd" ) ) ||  avi->verifyStreamFormat( make_fourcc( "DVSD" ) )  ) )
 			return false;
 		avi->ReadIndex();
 		return true;