Hello all, When I am burning Windows 8 iso and then created from burned disc iso back and compare md5, sha1 of original iso and iso created from burned disc hash's are different, but why?? I test this in Windows 8. But there is very interesting thing that when I am doing all these procedures in Windows XP I have no problem original iso comparing with burned disc created iso hash's are the same with no difference. Where is problem? The interesting thing is that this problem is in Linux too! These procedures I do with CDBurnerXP.