Add routines to open an ISO-9660 image independent of being part of a

CD.

example/sample6.c

@@ -1,7 +1,7 @@
 /*
-  $Id: sample6.c,v 1.1 2003/12/24 11:09:26 uid67423 Exp $
+  $Id: sample6.c,v 1.2 2004/01/10 03:03:08 rocky Exp $
 
-  Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>
+  Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -81,7 +81,8 @@ main(int argc, const char *argv[])
 					statbuf->lsn + (i / ISO_BLOCKSIZE),
 					false) )
       {
-	fprintf(stderr, "Error reading ISO 9660 file\n");
+	fprintf(stderr, "Error reading ISO 9660 file at lsn %d\n",
+		statbuf->lsn + (i / ISO_BLOCKSIZE));
 	return 4;
       }