The Witcher 2 Free Backup Program

CD Projekt RED and GOG have created a program allowing customers who purchased The Witcher 2 outside of GOG to download a DRM-free version as a backup.  You can download your free copy here.  If you do not already have a GOG account, you will need to sign up, but by doing so, you get seven games on top of your free backup.

In addition, the original Witcher: Enhanced Edition is on sale for $4.99 via GOG.