[mythtv-users] DVD recording sync issues with PVR 350

Nick knowledgejunkie at gmail.com
Thu May 5 15:27:56 UTC 2005

On 5/5/05, Cory Papenfuss <papenfuss at juneau.me.vt.edu> wrote:
> > I am writing some of my MythTV recordings to DVD and I
> > get a-v sync drifts during the DVD recording, up to a
> > second or two near the end of a two-hour recording
> > (playing within myth is fine, though).  I've noticed
> > that many people have this problem, but all the
> > solutions I've tried that people suggested haven't
> > worked for me.  For reference, I'm using a PVR-350,
> > Myth 0.18, ivtv-0.2.0-rc3e, on a headless system
> > running on a Celeron 566 with SuSE Linux 9.2.
> >
>         Most likely due to changing A/V sync within the MPEG2 stream.
> It's a known problem without a known (bug-free) solution.


Is this just a known issue for hardware-MPEG2-card recorded streams,
or all MPEG2 streams in general? I regularly record DVB and PVR-350
streams here in the UK, demux them, edit them, and then burn to DVD
with no issues at all (using Project X (Java) to demux and fix,
Cuttermaran to edit [uses mplex], and then DVD Hive [uses dvdauthor,
mplex, and mkisofs] to create ISO images). I sometimes also reencode
edited MPEG2 streams that have been through the demux/remux process
into XVID/DIV5 with no A/V sync problems.

Does this problem affect all popular linux-based tools mentioned in
this thread? I use the above tools on my Win2K box because they are
all GUI-driven and, having not tried other tools and because they
worked, have not looked at others. It'd sure be good to be able to do
it all driven from a GUI on my myth box from the sofa!


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