to play MPEG2 streams from a hard disk or a DVD.
-Building, Installing and Running libdvdcss
-==========================================
+Building and Installing libdvdcss
+=================================
See the INSTALL or INSTALL.libdvdcss file for this.
+Running lidvdcss
+================
+
+The behaviourof the library can be affected by changing two environment
+variables:
+ DVDCSS_METHOD={title|disc|key}: method for key decryption
+ title: decrypted title key is guessed from the encrypted sectors of
+ the stream. Thus it should work with a file as well as the
+ DVD device. But it sometimes takes much time to decrypt a title
+ key and may even fail. With this method, the key is only checked
+ at the beginning of each title, so it won't work if the key
+ changes in the middle of a title.
+ This is the default method,
+ disc: the disc key is first cracked ; then all title keys can be
+ decrypted instantly, which allows us to check them often,
+ key: the same as "disc" if you don't have a file with player keys at
+ compilation time. If you do, the decryption of the disc key
+ will be faster with this method. It is the one that was used by
+ libcss.
+ DVDCSS_VERBOSE={0|1|2}: libdvdcss verbosity
+ 0: no error messages, no debug messages,
+ 1: only error messages (this is the default)
+ 2: error and debug messages
+
Troubleshooting
===============