I have deleted some avi file from my hard disk after that i have format and install operating system (windows) several times. I have used several recovery software to retrieve my deleted avi files but the recovery software says it deleted earlier version of windows some not. Would you please help me how can i recovery my files or is there any ways? or is it possible with any recovery software ? By the way,have anyone used Nice to Recover Data for Mac software? It is said that it can Recover photos, videos, music and other multimedia files from various Internal and External Mac Hard Drives, USB Flash Drives, iPod and memory cards. Looking for your help. Thanks in advance!