--- mplayer.1.orig	2003-07-08 01:02:25.000000000 +0200
+++ mplayer.1	2003-07-16 00:34:29.000000000 +0200
@@ -702,7 +702,13 @@
 Useful when ripping from DVD or network.
 .TP
 .B \-dumpvideo (MPLAYER only)
-Dump raw compressed video stream to ./\:stream.dump (not very usable).
+Dumps raw compressed video stream to ./\:stream.dump (not very usable).
+When the source file is AVI/MOV/ASF mplayer adds to the dump a 4 byte header for every packet, unless -rawdump is specified (see below).
+.TP
+.B \-rawdump (MPLAYER only)
+(disabled by default)
+When used, mplayer dumps really raw (without headers) compressed video stream to ./\:stream.dump (not very usable).
+Useful for MPEG1/2 video streams in AVI.
 .TP
 .B \-dvd\-device <path\ to\ device>
 Override default DVD device name /dev/\:dvd.