--- multiplexer/iso13818ts.1	2001/07/12 10:01:39	1.7
+++ multiplexer/iso13818ts.1	2001/07/19 09:52:34	1.8
@@ -269,10 +269,15 @@ prevent discontinuities in the output.
 .SH OVERVIEW
 The multiplexer is designed to run uninterrupted and
 be controlled via \fIstdin\fR and \fIstderr\fR.
-It may be invoked interactively with the streams to
-process given as command line options or with
-the commands to be processed typed into \fIstdin\fR
-during operation.
+It is designed to process data in real time,
+i.e. if the processing is not performed fast
+enough (e.g. because of low processor performance),
+errors in the resulting data may occur, namely
+concerning the timing.
+The mutliplexer may be invoked interactively with
+the streams to process given as command line options
+or with the commands to be processed typed into
+\fIstdin\fR during operation.
 The latter type of usage is also designed for use
 with an user interface front-end, that may
 translate some GUI input to iso13818ts commands