The CD/DVD drive in a laptop consumes the most electricity. With Virtual CD, you can simply leave it at home. All your virtual CDs are on your hard drive. They are accessed via virtual CD/DVD drives, and thus the actual CD/DVD drive becomes superfluous. Your battery will last much longer!
Leave your CDs at home! You no longer have to constantly lug your CDs/DVDs around with you! You no longer have to be afraid that you'll lose or forget your CDs when you're on the road!
By using Virtual CD, your original CDs are protected against theft. Laptop theft is a problem that is getting worse, but the loss of your CDs could cost you even more! You can also protect the virtual CDs with a password and encryption, so that anyone who is not authorized cannot read your virtual CDs.