Thanks, I have both Astraweb and Giganews...
So the files themsevles are fine Astraweb last week had a server crash, which led to incomplete files been downloaded.
But because 65 out of 70 files were all missing a few blocks, it tends to seem to be a waste to download 2800 blocks, when only 280 of them are missing...This was a suggestion that was given to me: I'm not actually sure of how to do steps 1 and 2, or can't see how step 2 is actually possible, or if indeed it could help.
"1. Create an nzb of your files.
2. Work out which segment is missing from each file.
3. Open the nzb file in a text editor, and modify each file so that it only needs to download the missing part(s).
4. Save and download your new nzb [using Giganews]. Save them to a different folder, so you don't run into any problems.
5. Manually add those file segments into QuickPar, and then it should be able to repair the whole archive for you."
Anyway I've decided to get all 7.5Gb again, which really uses my whole monthly quota, because of an Astraweb stuff-up....
But i guess it will all work okay at least...
Thanks for the replies.