 DvD Decrypter is freeware. Download it from http://www.dvddecrypter.com/download.asp
 The main reason i use it because Alcohol cant burn CSS protected DVD. So now its easy, turn 
 Dvd decrypter on and after it defeat CSS, close it and happy using ALcohol again.

 Installation:
 Just download and install program then copy all file, sub dir to plugin\dvddecrypt\files