[mythtv-users] Poor quality/performance on mytharchive compared to DVDstyler

Robin Gilks g8ecj at gilks.org
Wed Mar 21 23:48:26 UTC 2007

> I reset those and will try this again (realizing that 720x480 will give me
> larger file sizes without appreciable improvement in visuals). But my
> original
> question still stands: what is DVDstyler doing with 480x480 MPEG2s quickly
> and
> cleanly that Mytharchive is doing ineptly?
> If DVDstyler is a frontend to the same set of command-line linux DVD
> mastering
> utilities that Mytharchive is using, why is DVDstyler capable of handling
> this
> task quickly and correctly and MythArchive is not?
> Hm?

If you take a look at the mythburn.py script you will find a function that
will help you decide what resolution to record at to remain DVD compliant
when burning.

This function is: isResolutionOkayForDVD

Use your favourite editor to have a look at that and the magic numbers in
it (its only 4 lines, you can't miss it) will give you all the clues
you'll need.

As for DVDstyler, I guess it produces non-compliant DVDs...

And remember, its the bit rate that determines the filesize, not the
resolution. I recommend the info at:

Robin Gilks

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