Index: trunk/Mars/mcorsika/MCorsikaFormat.cc
===================================================================
--- trunk/Mars/mcorsika/MCorsikaFormat.cc	(revision 18534)
+++ trunk/Mars/mcorsika/MCorsikaFormat.cc	(revision 18535)
@@ -124,12 +124,17 @@
 {
 
-    int blockHeader;
-    fIn->read((char*)&blockHeader, 4);
-    if (fIn->eof())
-        return kFALSE;
+    int blockHeader = 22932;
+    while (blockHeader==22932)
+    {
+        fIn->read((char*)&blockHeader, 4);
+        if (fIn->eof())
+            return kFALSE;
+    }
 
     blockVersion = 0;
     blockIdentifier = 0;
     blockLength     = 272 * 4;
+
+    cout << "BH=" << blockHeader << endl;
 
     switch(blockHeader)
@@ -138,5 +143,4 @@
          blockType = 1200;
          break;
-      case 22932:       // Magic Number (seems(!) to also signal run end, RUNE comes AFTER)
       case 1162761554 : // RUNE
          blockType = 1210;