hey guys new 2 site found out the site via a problem with my c and c 3 backup not working !!! anyway i was having same problem error please insert orig disk not back up 1000 after a few hours of trying power iso yasu and dt 4.08 and dt pro it still wouldn't work but after deep thought i came to conclusion that windows vista was the problem so set c and c 3 exe to run in xp mode mounted dt with image and it works perfect now and no need for yasu either hope ive helped anyone with the problem if your still having it (if your still having trouble an you only have win xp service pack2 im not sure probably your image mds file ) but im running vista so i just changed properties on exe file to run in xp mode and it was game on! command conquer is a high qualiy game series