We are a k12 site and one of the high schools does their daily news through VOD instead of live like every other school. So they need change the source file every day. To get around an issue where they wouldn't be able to delete the file because it's in use, i have a script that deletes the source file every night at 3 AM. So from 3 AM until whenever the people get around to uploading the new source file, there is just an error in the flash player. Is there a way to have a back up source file play until the main source file gets put in place? Let me know if you need any other information. Thanks!