Virtual studio dj - Dj and scratching
Here are some tutorials on how to use Virtual Studio Dj. I don't personally use Virtual Studios but I heart that its a pretty good DJ software for mixing and blending music. You can learn the basics from these videos and some advance techniques for remixing and mixing music. You'll learn how to dj and scratch as you would real Vinyls and turntables.
Virtual Studio DJ - How To DJ Perfectly
Virtual Studio DJ - Scratch Tutorial