Return of Reckoning

Thx for the help it worked

when ever i want to extract the 5 files that i downloaded via mega i get error saying File damaged using 7zip to extract em check out the picture (note most of the language is dutch you will have to translate it to english)
http://i.imgur.com/q6gV1BT.png
if some one knows a solution i would like ...

When ever i try to unzip the 5 parts i downloaded with the mega download i get an error saying some files are damaged ive downloaded the files via Mega and Unzip em with 7Zip does anybody know a possible solution for this problem?
srry for bad english X3