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From: Jim on 27 Mar 2010 07:10
Martin S Taylor <mst(a)hRyEpMnOoVtEiTsHm.cIo.uSk> wrote:

> Jim wrote
> >> I have various DVDs which I've made myself using iDVD, and they contain
> >> movies with chapter marks. Is there any way of ripping these movies back to
> >> .mov format while preserving the chapter marks?
> >
> > I've converted to .m4v in Handbrake and kept chapter marks. Not sure if this
> > helps you.
>
> The problem with Handbrake is that it is very restricted on the codecs it
> will use. If I output in H264, I lose lots of quality, and it takes an age.

I rarely alter the settings, but what happens if you crank the quality
setting up to max? Apart from it taking about three years to finish,
presumably.

Jim
--
"Microsoft admitted its Vista operating system was a 'less good
product' in what IT experts have described as the most ambitious
understatement since the captain of the Titanic reported some
slightly damp tablecloths." http://www.thedailymash.co.uk/
From: John Hill on 27 Mar 2010 08:09
Chris Ridd <chrisridd(a)mac.com> wrote:

> On 2010-03-27 11:03:28 +0000, Martin S Taylor said:
>
> > Jim wrote
> >>> I have various DVDs which I've made myself using iDVD, and they
> >>> contain movies with chapter marks. Is there any way of ripping these
> >>> movies back to .mov format while preserving the chapter marks?
> >>
> >> I've converted to .m4v in Handbrake and kept chapter marks. Not sure if
> >> this helps you.
> >
> > The problem with Handbrake is that it is very restricted on the codecs it
> > will use. If I output in H264, I lose lots of quality, and it takes an age.
>
> OK it will be transcoding things, but is there really significant
> quality loss compared to a DVD?

Yes - I used it to get a DVD (from a DVD recorder) on to my mac, and
when I'd finished doing the editing I wanted and burnt a new DVD, ther
was a marked degradation. It was atrocious! So i gave up.
--
Please reply to john at yclept dot wanadoo dot co dot uk.
From: Martin S Taylor on 27 Mar 2010 08:31
John Hill wrote
>> OK it will be transcoding things, but is there really significant
>> quality loss compared to a DVD?
>
> Yes - I used it to get a DVD (from a DVD recorder) on to my mac, and
> when I'd finished doing the editing I wanted and burnt a new DVD, ther
> was a marked degradation. It was atrocious! So i gave up.

The Handbrake people themselves strongly recommend against using Handbrake
for this, specifically because of the loss of quality:

<http://trac.handbrake.fr/wiki/SupportFAQ#imovie>

They recommend using MPEG-Streamclip. But that doesn't preserve chapter
marks, AFAICS.

MST

From: Chris Ridd on 27 Mar 2010 11:43
On 2010-03-27 12:31:37 +0000, Martin S Taylor said:

> John Hill wrote
>>> OK it will be transcoding things, but is there really significant
>>> quality loss compared to a DVD?
>>
>> Yes - I used it to get a DVD (from a DVD recorder) on to my mac, and
>> when I'd finished doing the editing I wanted and burnt a new DVD, ther
>> was a marked degradation. It was atrocious! So i gave up.
>
> The Handbrake people themselves strongly recommend against using Handbrake
> for this, specifically because of the loss of quality:
>
> <http://trac.handbrake.fr/wiki/SupportFAQ#imovie>
>
> They recommend using MPEG-Streamclip. But that doesn't preserve chapter
> marks, AFAICS.

Converting to DV does make more sense. You could always ask the MPEG
Streamclip guys if they could add support for chapter markers.

--
Chris

From: Martin S Taylor on 29 Mar 2010 04:53
Chris Ridd wrote
>>> Yes - I used it to get a DVD (from a DVD recorder) on to my mac, and
>>> when I'd finished doing the editing I wanted and burnt a new DVD, ther
>>> was a marked degradation. It was atrocious! So i gave up.
>>
>> The Handbrake people themselves strongly recommend against using Handbrake
>> for this, specifically because of the loss of quality:
>>
>> <http://trac.handbrake.fr/wiki/SupportFAQ#imovie>
>>
>> They recommend using MPEG-Streamclip. But that doesn't preserve chapter
>> marks, AFAICS.
>
> Converting to DV does make more sense. You could always ask the MPEG
> Streamclip guys if they could add support for chapter markers.

Exporting to .mp4 then re-importing directly does indeed degrade the quality
considerably, and I have written to squared5 to see if they will add support
to MPEG-Streamclip.

I'm also trying reconverting the .mp4 back to .dv before burning, which may
help (though I doubt it). There's also a company called iskysoft, who sell
lots of conversion-type software, and I've written to them to see if they
sell anything that will help.

MST

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