--- io.c.org2	Mon Jun  2 00:06:54 2003
+++ io.c	Mon Jun  2 00:07:27 2003
@@ -6614,7 +6614,7 @@
 				read_output_ctrl = 4;
 			} 
 			/* check Medium error/buffer underrun */
-			if (strncmp(tmp2,"Input/output error",18)) {
+			if (strncmp(tmp2,"Input/output error",18) == 0) {
 				read_output_ctrl = 5;
 			}
 		}