[mythtv] DVD errors

james jam at tigger.ws
Mon Jan 25 14:11:53 UTC 2010


G'day all
prior to 0.21/22 one could make DVDs that just worked.

Of late there have been myriads of problems either with short(ened) show 
sectors or of recent part of the way into a recording the audio stops.

The only hint from the log files is this
WARN: audio sector out of range: -8205 (vobu #1856, pts 891.004)

WARN: audio sector out of range: -8293 (vobu #1857, pts 891.484)

WARN: audio sector out of range: -8386 (vobu #1858, pts 891.964)

WARN: audio sector out of range: -8477 (vobu #1859, pts 892.444)

WARN: audio sector out of range: -8569 (vobu #1860, pts 892.924)

WARN: audio sector out of range: -8655 (vobu #1861, pts 893.404)

WARN: audio sector out of range: -8747 (vobu #1862, pts 893.884)

WARN: audio sector out of range: -8833 (vobu #1863, pts 894.364)

WARN: audio sector out of range: -8921 (vobu #1864, pts 894.844)

WARN: audio sector out of range: -9015 (vobu #1865, pts 895.324)

WARN: audio sector out of range: -9106 (vobu #1866, pts 895.804)

WARN: audio sector out of range: -9197 (vobu #1867, pts 896.284)

WARN: audio sector out of range: -9290 (vobu #1868, pts 896.764)

WARN: audio sector out of range: -9388 (vobu #1869, pts 897.244)

WARN: audio sector out of range: -9476 (vobu #1870, pts 897.724)

WARN: audio sector out of range: -9566 (vobu #1871, pts 898.204)
STAT: fixing VOBU at 362MB (1873/12048, 15%)^M
WARN: audio sector out of range: -9665 (vobu #1872, pts 898.684)
[snip]
In every case the original is quite watchable (the log accumulates a page of 
errors during a 2-3 hour recording.

Since there are general robustness errors I have not created a 'General Error 
in DVDs' ticket.

With a previous recording that I needed to commit to DVD I installed 0.21, 
used the contrib files to import the recording (maintenance). This correctly 
made a DVD whereas with all my 22-fixes it was broken.
Currently using branches/release-0-22-fixes [22872].

Any particular faulty-recording is exactly repeatable, but the errors that 
occur range from AllWorks, ShortRecoding or NoAudio (always at the same point, 
depends on input to say where the point is)

James


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