ErrNo 9 seems to be a generic error
[Errno 9] Bad file descriptor
This occurs if your operating system or UNIX filesystem cannot support files larger than 4 GB, and you try to download a file larger than 4 GB. The only way to fix this is to upgrade the operating system. This mostly affects Windows 98 and Windows ME; you will need to use Windows 2000 or Windows XP to download this file. This error can also be caused by filesystem corruption. Run Scandisk and then defragment your hard drive and try again.