ok i have a slightly strange problem.

i have an online shop. The products are downloaded as .zip files.

One of my products will not download however. I get 404 page not found etc.

The problem is definately with the zip file itself. I know this because i experimented using trial and error and noticed that if i took a few random files out, the zip file would download!

So bascially i need a way of fixing this file. I have obviously tried rezipping the file, renaming the zip file etc. I have tested the files within the zip file to make sure they are not erronous etc.

Is there any free software availible for osx that can repair this file?