Alcohol 52%

                     Free Edition Includes Protection Database Search Toolbar (2.0.2.4713 FE) All Windows operating sytems except 98/ME (Not for Business use)

                         This CD & DVD emulation software can create up to 6 virtual CD/DVD-ROM drives, allowing the user to play CDs & DVDs without the need for the original disc.

Link : http://trial.alcohol-soft.com/en/downloadtrial.php