ISO doesn't want to be opened or extracted or archived, which ever one

Every time I try to archive the ISO it says that it is either in unknown format or damaged and this sucks for me be now I have to wait for another like five days to get all those points back to download it again. Does anybody have another solution to this problem besides me waiting another 5 days to get te points back and downloading the ISO again?

use a download manager to help prevent it getting corrupted during download?

Replying to #2

where can get a download manager?

www.getright.com is one

Replying to #4

net transport
download accelerator
flashgetor use firefox which has a download manager but it's not a strong feature as compared to using a download manager. also, please note that it doesn't always let you resume a broken link as some sites do not allow resuming of broken links during downloads.