I am having the same issue. I uploaded the files via FTP to my server and created a download link by using the add file from server function. It looks great but the files get corrupted through the manager. I downloaded my files directly off the server, without the download manager and it worked fine.
Using the download manager drewsers.com/?page_id=1497 Password: mik3jor
Direct off server: drewsers.com/files
Thanks,
Andrew
