The easiest way of copy commercial DVDs for backup purpose is to use third party DVD decrypter software. Like DVD Ghost is a good choice for copy commercial DVDs to hard disk for backup.
To protect our expensive commercial DVDs from scratching or damaging, we’d better copy it to blank DVD or to hard disk for backup. DVD Ghost supports for copying commercial DVDs to hard disk only. If you want to copy commercial DVDs to 4.7GB DVD or 3.95GB DVD or 8.5GB DVD, you can free try CloneDVD. It will give you more choices.
With CloneDVD we can freely:
Rip DVD to ISO image file
Rip DVD to BlackBerry MP4 file formats
Rip DVD to iPhone MP4 file formats
Rip DVD to iPod MP4 file formats
Rip DVD to 3GP file formats
Rip DVD to PSP MP4 file formats
Compared with DVD Ghost and CloneDVD, DVD Ghost is mainly used to backup software for DVD player, DVD copy software, DVD burner and so on. But CloneDVD is professional DVD copy software and DVD converter.
But if you only want to copy commercial DVDs to hard disk, both DVD Ghost and CloneDVD can help you. If you want to do other things about your commercial DVDs, you can make a decision between these two programs based on your purposes.
Before buying CloneDVD or DVD Ghost, you can free download them at http://www.clonedvd.net/, then free try them.