[mythtv-users] Missing .nuv files?

[Michael Still]

I have several recordings that have no .nuv file in the filesystem. The 
backend reports:

2006-01-19 20:26:04.515 MainServer::HandleQueryRecordings()
                         Couldn't find backend for:
                         The Simpsons : "Home Away From Homer"

I've poked the recorded table in the database, and the named .nuv file 
is definitely missing.

So, I have a couple of questions about this:

  - why did it happen?
  - I can't delete the recordings from the UI now because of an error 
message. How do I rerecord these episodes?

I'm running a SVN snapshot from Christmas day last year if that matters.

Thanks,
Mikal