The converters/libdvdcss port
libdvdcss-1.4.3 – descramble scrambled DVDs
libdvdcss is a simple library designed for accessing DVDs like a block
device without having to worry about the decryption.
It can be controlled through environment variables:
0: no error messages, no debug messages,
1: only error messages (this is the default)
2: error and debug messages
specifies an alternate directory in which to store title key
values. ~/.dvdcss is the default.