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What is the best way to avoid recompressing with youtube file put to DVD ?

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Jean-Pierre Desrochers
What is the best way to avoid recompressing with youtube file put to DVD ?
on Jun 6, 2014 at 12:50:41 pm

I sometimes find very rare footages on Youtube
(mostly 4:3 frames) that I download with utilities
like YTD downloader or others..
The downloaded files are mostly MP4.
I want these files to be put on standard DVD's (not Blue-ray).
Since I always need to add some Intro texts, titles, etc.
and tweek the audio on the downloaded video I use Sony Vegas (old ver 8 Pro.)
editor and render it to MPG2 and AC3 separate files.
Now, after some tests I often found the video
has been recompressed on the final DVD and all
the image 'fast' movements suffer of 'comb' effect
due to recompression.. !! Sound is Ok.
So here is my question:
What would be the BEST way to make a DVD out of a downloaded video ?
Let's suppose we use Youtube videos:
- How to know what is the 'native' video format type (MP4, FLV, etc..)
to keep it that format in the download process ?
- How to read the downloaded video parameters to better set vegas
in the rendering process for minimal loss in video quality
- If the downloaded video is smaller than 720x480 (ex: 640x360)
is there a better way than 'zooming the image' in the editor line
to fill the available 720x480 frame ? Settings in the rendering MPG2 ?

Your infos will be VERY usefull to me.

Best,
J-Pierre

J-P Desrochers
Quebec, Canada


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Dave Haynie
Re: What is the best way to avoid recompressing with youtube file put to DVD ?
on Jun 6, 2014 at 8:25:49 pm

DVD native format is MPEG-2. YouTube's native format is essentially H.264 these days. There is no way to do what you're doing without reformatting.

If you're seeing "combing", that's probably due to your reformatting the video to DVD to 60i... DVD can only be 60i, 50i (Europe) or 24p. Look into generating a proper 24p video, which is what most YouTube video is converted to when YouTube gets it. Incidentally, YouTube really doesn't like folks downloading their video. Just sayin'...

You also have to realize that something which looks ok in a small windows on a PC desktop will not necessarily look very good on television. You might have to learn quite a bit more about what YouTube can do to a video's original format, and how to potentially restore interlacing (if that was present in the original) to get the best results.

-Dave


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Jean-Pierre Desrochers
Re: What is the best way to avoid recompressing with youtube file put to DVD ?
on Jun 7, 2014 at 6:25:12 pm

Thank you Dave for your kind reply,

But I'm a neebie in these all different video
formats, parameters, specifications to check..

Just have a look at this Youtube video:






I don't think its a native H.264 format..
In fact, when I downloaded it, it came out in MP4 format.
Is-it the same as H.264 ?
One thing that would help me a lot is to have the correct
Vegas rendering settings for that specific video and an explaination for them to actually get the least of lost of video quality.
Then I could expand what I learned to other video rendering
vs their native format and know what I'm doing..

P.S. Any books filled with explainations on
rendering, video tweeking with examples available ??

Thanks!

J-P Desrochers
Quebec, Canada


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Norman Black
Re: What is the best way to avoid recompressing with youtube file put to DVD ?
on Jun 7, 2014 at 8:34:02 pm

[Jean-Pierre Desrochers] "I don't think its a native H.264 format..
In fact, when I downloaded it, it came out in MP4 format.
Is-it the same as H.264 ?"


Youtube videos are AVC/H.264.
MP4 is a file format and not a video format. An MP4 file can contain most any video codec format.
The free MediaInfo utility can give you information on any video file contents.


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Jean-Pierre Desrochers
Re: What is the best way to avoid recompressing with youtube file put to DVD ?
on Jun 8, 2014 at 5:11:19 pm

Hi Norman,

I found and downloaded the 'MediaInfo version 0.7.69' utility installer on the web. When I tried to install it my ESET Node32 antivirus detected the following malware:

'Conduit Search Protect' toolbar installer.

and erased it.

I cannot find a MediaInfo installer earlier than ver 0.7.69
that would not be infected..
Do you have a web link ?

JP

J-P Desrochers
Quebec, Canada


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Stephen Mann
Looks like it's time to put MediaInfo on the DO NOT INSTALL list.
on Jun 11, 2014 at 2:30:15 pm

Search Protect spamware is spread with different free software, in most cases – it’s a pre-selected option during the program installation. Once infected, it's really difficult to remove.

I went to the MediaInfo site (http://mediaarea.net/en/MediaInfo) because my installed copy prompted for an "available upgrade". And even this version from the source installs a spamware program (OpenCandy) without permission.

Looks like it's time to put MediaInfo on the DO NOT INSTALL list.

Steve Mann
MannMade Digital Video
http://www.mmdv.com


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Jean-Pierre Desrochers
Re: Looks like it's time to put MediaInfo on the DO NOT INSTALL list.
on Jun 11, 2014 at 3:11:24 pm

Ok,
Now is there a 'safe' alternative of MediaInfo ?

This utility would have been VERY handy..

JP

J-P Desrochers
Quebec, Canada


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Stephen Mann
Re: Looks like it's time to put MediaInfo on the DO NOT INSTALL list. - not. See below
on Jun 11, 2014 at 4:29:58 pm

I have not tried to use any of these:
http://alternativeto.net/software/mediainfo/

The author of Mediainfo (jerome@mediaarea.net)insists that OpenCandy only runs once during the installation of MediaInfo, but I don't trust that the spyware is only temporary.

A donation would bypass the OpenCandy spamware, (http://mediaarea.net/en/MediaInfo/Donate) I did make a donation and it did install clean. You can appreciate the visceral response to seeing spyware installed with one of our favorite programs, so for now, donate a dollar to get the ad-free version. Still, the website is unclear about the process.

Ironically, the dll that MediaInfo is based on is Open Source (http://sourceforge.net/projects/mediainfo/files/binary/libmediainfo0/0.4.0....), so any programmer could use it.

Steve Mann
MannMade Digital Video
http://www.mmdv.com


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