We sometimes get an error when trying to set up a manual multicast
session. When we go through the menu on the server console to select an
existing image file, we get a "cannot open specified file" error message.
So far, the only way to get around this error is to copy the file to a
different location, rename the file, copy it back, then restart the
multicast session. It usually works fine after that.

Anyone have any ideas? The whole copy/rename/copy again process is
particularly tedious when dealing with large 4GB+ images. Thanks,