#define MATROSKA_ID_TAGNAME 0x45A3
#define MATROSKA_ID_TAGSTRING 0x4487
#define MATROSKA_ID_TAGLANG 0x447A
-#define MATROSKA_ID_TAGDEFAULT 0x44B4
+#define MATROSKA_ID_TAGDEFAULT 0x4484
+#define MATROSKA_ID_TAGDEFAULT_BUG 0x44B4
#define MATROSKA_ID_TAGTARGETS 0x63C0
#define MATROSKA_ID_TAGTARGETS_TYPE 0x63CA
#define MATROSKA_ID_TAGTARGETS_TYPEVALUE 0x68CA