Hi to all! I have an old sony cdu33a 2x cd! The problem is that no docs are provided about which io_port I should use. The DOS driver don't tell me the values! The manifacturer of the audio card / controller have retired ( was Reveal ) and all the hints in cdu31a.c don't work! I'm using kernel 2.2.1 on hamm. What can I do? Thanks!!!!!!!!!!! Andrea