Mass export?

Hi there,

The project I'm working on has a lot of file contributors. So, at the end of the project, there will be a large library of files uploaded by different users. My client would like to have all the files as a single archive on USB or DVD. Is there a possibility for me to mass export the files or archive in order to download them? The alternative is to manually dowload thousands of files, seems like something people might have run into before?