Added support for replaying DVDs

INSTALL

@@ -15,6 +15,11 @@ If you have the DVB driver source in a different location
 you will have to change the definition of DVBDIR in the
 Makefile.
 
+VDR also needs the package 'libdvdread' in order to replay DVDs.
+This package is expected to be located in the directory ../DVD (seen
+from the VDR directory).  Adjust the definition of DVDDIR in the
+Makefile if necessary.
+
 This program requires the card driver version 0.9.0 or higher
 to work properly. You need to load the dvb.o module *without* option
 'outstream=0' (previous versions of VDR required this option to have
@@ -100,6 +105,19 @@ This program must be given to VDR with the '-a' option, as in
 
   vdr -a ac3play
 
+Accessing the DVD drive:
+------------------------
+
+By default VDR expects the DVD drive to be located at /dev/dvd (which
+typically is a symbolic link to the actual device, for instance /dev/hdc).
+You can use the '-V' option to overwrite this, as in
+
+  vdr -V /media/dvd
+
+Note that the user id under which VDR runs needs to have write access to
+the DVD device in order to replay CSS protected DVDs (which also requires
+the presence of the 'libcss' library).
+
 The video data directory:
 -------------------------