Chris Moewes-Bystrom wrote:
>> I think mvpmc tries to play .nuv files natively without vlc...
> 
> It looks like you are correct and it does try to play them directly,
> and since it is mpeg4 it fails.

I ran into this too, but not having VLC setup, the files of course don't 
play. What was unexpected is that I thought the default transcoder 
settings in MythTV would produce MPEG2 video.

It seems adjusting them to use MPEG2 would be another way to address the 
above problem, though obviously at the cost of storage space.

I didn't try an exhaustive search, but so far I haven't ran across any 
recommended transcoder settings on the mvpmc wiki. It seems like it 
would be good to have a page of such settings - both settings for 
recording from tuner cards as well as transcoding settings.

For example, I recently adjusted the "out-of-the-box" default MythTV 
recording settings[1] for my PVR-500 from 480x480 @ 4500 Kbps, which 
played nicely via mvpmc, but ate up disk space like crazy, to 352x480 @ 
2000 Kbps, and set the low quality to 352x240 @ 1200 Kbps.

The former maintains good video quality, but both suffer from audio sync 
problems after skipping in mvpmc. Bad enough that skipping back doesn't 
fix it. I've had to become quite familiar with the trick of hitting the 
record button a few times to pause the video and restore sync.

Initially I though the problem might be due to the changes I also made 
to the audio encoding rates (dropping the sampling frequency and bps), 
but switching them back to the original settings had no benefit.

I'm guessing someone has taken the time to experiment with the settings 
and determine optimal recording parameters for PVR series cards that 
reduce disk space usage while also playing back well on mvpmc. It would 
be good to list these on the wiki. I'll create a page like the MythTV 
one below, if there isn't one already, and people post their settings.

  -Tom

1. http://www.mythtv.org/wiki/index.php/Recording_Parameters

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