However, I found that FTPing fixed movies invalidates the fixing process. This is because FTP, like any other plain Unix utility, doesn't care about the creator or type file attributes of the HFS+ filesystem, effectively obliterating them.
Without having to resort to another lenghty fixing process, I found that just restoring creator/type attributes on these files does it's magic. There are numerous tools to change these attributes, so I won't bother you with exactly how to change them, just with the needed info. The creator name should be TVOD, the type DAVI.

