diff --git a/cdrskin/cdrskin.1 b/cdrskin/cdrskin.1
index e2f8edd..2f89ec9 100644
--- a/cdrskin/cdrskin.1
+++ b/cdrskin/cdrskin.1
@@ -525,6 +525,9 @@ Set speed of drive. With data CD, 1x speed corresponds to a throughput of
 150,000 bytes/second. With DVD, 1x = 1,385,000 bytes/second.
 It is not an error to set a speed higher than is suitable for drive
 and media. One should stay within a realistic speed range, though.
+Special speed settings are:
+.br
+0 = minimal speed , -1 = maximal speed (default).
 .TP
 .BI \-swab
 Announce that the raw audio data source of subsequent tracks is byte swapped