Index: oup/current/Helper/LevelDB.pas
===================================================================
--- oup/current/Helper/LevelDB.pas	(revision 167)
+++ oup/current/Helper/LevelDB.pas	(revision 173)
@@ -239,5 +239,5 @@
     case Connection.DataOS of
       DOS_WIN: DatHeader.OSIdent[i] := HeaderOSIdentWin[i];
-      DOS_MAC: DatHeader.OSIdent[i] := HeaderOSIdentMac[i];
+      DOS_MAC, DOS_WINDEMO: DatHeader.OSIdent[i] := HeaderOSIdentMac[i];
       DOS_MACBETA: DatHeader.OSIdent[i] := HeaderOSIdentMacBeta[i];
     end;
@@ -280,5 +280,9 @@
       case Connection.DataOS of
         DOS_WIN:     ExtensionsHeader[i].Ident := FileTypes[j].IdentWin;
-        DOS_WINDEMO: ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
+        DOS_WINDEMO:
+            if FileTypes[j].Extension = 'SNDD' then
+              ExtensionsHeader[i].Ident := FileTypes[j].IdentWin
+            else
+              ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
         DOS_MAC:     ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
         DOS_MACBETA: ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
@@ -492,5 +496,5 @@
       DeleteFile(target);
     end;
-end;
+  end;