--- 3m-810.pl	2010/07/06 15:05:44	80
+++ 3m-810.pl	2010/07/23 13:16:51	92
@@ -518,16 +518,26 @@
 
 	print "write_tag $tag = ",dump( $data ), " [$len/$blocks] == $hex_data\n";
 
+	my $ok = 0;
+
 	cmd(
 		"d6 00  ff  04  $tag  00 $blocks 00  $hex_data  BEEF", "write $tag",
-		"d6 00  0d  04 00  $tag  $blocks  BEEF", sub { assert() },
+		"d6 00  0d  06 00  $tag  $blocks  BEEF", sub { assert(); $ok++ },
+		"d6 00  0d  04 06  ", sub {
+			my $data = shift;
+			warn "no tag ",as_hex( substr($data,0,8) ), " in range for write\n";
+		},
 	); # foreach ( 1 .. 3 ); # XXX 3m software does this three times!
 
-	my $to = $path;
-	$to .= '.' . time();
+	if ( $ok ) {
 
-	rename $path, $to;
-	print ">> $to\n";
+		my $to = $path;
+		$to .= '.' . time();
+
+		rename $path, $to;
+		print ">> $to\n";
+
+	}
 
 	forget_tag $tag;
 }
@@ -538,6 +548,10 @@
 	cmd(
 		"d6 00  0c  09  $tag $data BEEF", "secure $tag -> $data",
 		"d6 00  0c  09 00  $tag    BEEF", sub { assert() },
+		"d6 00  0c  09 06  ", sub {
+			my $data = shift;
+			warn "no tag ",as_hex( substr($data,0,8) ), " in range for secure\n";
+		},
 	);
 
 	forget_tag $tag;
@@ -712,7 +726,7 @@
 		warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug;
 		$dispatch->{ $to }->( $rest );
 	} else {
-		die "NO DISPATCH for ",as_hex( $full ),"\n";
+		die "NO DISPATCH for ",as_hex( $full ), " in ", dump( $dispatch );
 	}
 
 	return $data;