On Mon, Oct 25, 2010 at 9:23 PM, Klistvud
<quotations@aliceadsl.fr> wrote:
Dne, 25. 10. 2010 02:47:43 je Yuwen Dai napisal(a):
I use mpeg2 files as source to create a DVD. The Resolution of the mpeg2 is
720x576 and clear, but the result is blurer although its resolution is
720x576 too. When I play the DVD, I can see obvious mosaics. Did I
misconfigure anything? I use qdvdauthor 2.0100 and the host is Debian
Lenny. Any suggestion will be appreciated.
As you certainly know, re-encoding compressed formats may be extremely lossy; so, the first thing to do would be to double-check that your mpegs just get *copied* over to the DVD, and not *re-encoded*. I'm not acquainted with the qdvdauthor suite, so can't advise you on the precise steps to take to ensure that there's no re-encoding going on.
Hello Klistvud,
Your suggestion is helpful. I generated the mpeg2 files in Kino. There're two file formats available when generating: generic mpeg2 and DVD. It's the generic mpeg2 format that causes QDvdauthor re-encode the files. After I use DVD format, QDvdauthor will not re-encode them and the quality of DVD is satisfying.
Best regards,
Yuwen
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Cheerio,
Klistvud http://bufferoverflow.tiddlyspot.com
Certifiable Loonix User #481801 Please reply to the list, not to me.
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