--- src/sys/dev/ata/atapi-cd.c	Sat Jul  8 17:37:56 2000
+++ mysrc/sys/dev/ata/atapi-cd.c	Sat Jul  8 17:31:46 2000
@@ -1725,7 +1725,7 @@
 
     if ((error = acd_start_stop(cdp, 0)) == EBUSY) {
 	if (!close)
-	    return 0;
+	    return ENXIO;
 	if ((error = acd_start_stop(cdp, 3)))
 	    return error;
 	acd_read_toc(cdp);