I never like to carry original copies of software. It's a better idea to make a backup copy and leave the original at home or with your IT department. Most software companies will allow you to make a backup copy. Some don't and put copy protection o
It is nowexactly four years ago that Blender was released as free software on the Internet, and I can only say that this was the best thing ever to happen with Blender! Not only has Blender attracted hundreds of active developers and volunteers worl