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Compression of video on Architech 5.0 Pro?
Posted by Mark Krueger on August 16, 2011 at 3:37 pmWhen making a DVD using Sony Architech and my file is less than 4.7gb, why does it further compress the video if it would have fit on the disc? Even very small files, say a video of ten minutes is compressed. Why? Is this reducing the quality?
John Rofrano replied 14 years, 8 months ago 2 Members · 5 Replies -
5 Replies
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John Rofrano
August 16, 2011 at 8:21 pm[Mark Krueger] “When making a DVD using Sony Architech and my file is less than 4.7gb, why does it further compress the video if it would have fit on the disc? Even very small files, say a video of ten minutes is compressed. Why? Is this reducing the quality?”
Are you loading a DVD compliant MPEG2 file into DVD Architect? If not, DVD Architect must convert your file into an MPEG2 file that is compliant with the DVD spec. You should be rendering your video to MPEG2 using one of the “DVD Architect” templates in order for DVD Architect to use the file without re-encoding.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Mark Krueger
August 17, 2011 at 12:55 amThanks John, No I was not using one of the DVD Architect templates. I opened the file in Vegas and did a render as using : DVD Architect NTSC Widescreen Video Stream. Mpeg2 You are right it did not do any further encoding and finished rather qucikly.
What does “video stream” mean?I thought I read someplace that HD video needs to be rendered as an Mpeg4? Is that right? I can’t see where vegas does Mpeg4.
I am shooting with a panasonic codec of AVC intra. I use a raylight program to convert the files for use in Sony Vegas. That program makes proxie files for editing. The raylight program allows me to go back to high quality when I am ready to render.
What I am trying to do here is get the best possible finished product on the DVD. Would I have to use the Blue Ray settings to do this even though it may be a small file (less than 4.7 gigs)?
I tried making on BlueRay with DVD Architect and when I put it in my sony blue ray player it said it could not read the disk. Any ideas?
By the way, thanks for your help here and at other times that you have responded to my posts. This is a great service to us trying to learn.
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John Rofrano
August 17, 2011 at 10:56 am[Mark Krueger] “What does “video stream” mean?”
It means that the file will only contain a video stream (no audio) and you should render the audio separately as Dolby Digital AC3.
[Mark Krueger] “I thought I read someplace that HD video needs to be rendered as an Mpeg4? Is that right?”
No, it can me MPEG2 or AVCHD for Blu-ray, or AVCHD for a “Blu-ray formatted” DVD. AVCHD is part of the MPEG4 spec (AVC/H.264 MPEG4 Part 10).
[Mark Krueger] “I can’t see where vegas does Mpeg4. “
The Sony AVC and MainConcept AVC are both MPEG4 codecs.
[Mark Krueger] “What I am trying to do here is get the best possible finished product on the DVD. Would I have to use the Blue Ray settings to do this even though it may be a small file (less than 4.7 gigs)?”
If you want it to be playable on a DVD player then you can’t use Blu-ray settings. You must use the DVD Architect DVD templates. DVD’s can only contain MPEG2.
[Mark Krueger] “I tried making on BlueRay with DVD Architect and when I put it in my sony blue ray player it said it could not read the disk. Any ideas? “
Blu-ray formatted DVD’s are not “officially” part of the Blu-ray spec so Blu-ray players are not obligated to support this. Some do. Some don’t. There is no reason to make Blu-ray on DVD anymore. That was a valid argument when Blu-ray discs cost $25 each. Now that they are $1.25 each, it’s a silly idea. 😉
[Mark Krueger] “By the way, thanks for your help here and at other times that you have responded to my posts. This is a great service to us trying to learn.”
You’re welcome. I’m glad you find my posts helpful.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Mark Krueger
August 17, 2011 at 1:11 pmOk , Thanks for the info…. I found that out last night when I had no audio on the DVD!!!
You stated:
There is no reason to make Blu-ray on DVD anymore. That was a valid argument when Blu-ray discs cost $25 each. Now that they are $1.25 each, it’s a silly idea.I dont’t understand what you mean here…..
I purchased some “blu-ray” formatted discs … but this is what did’nt work… can you explain some moreMark
Oh yea, can you explain why when I try to use the bold, underline etc for these posts this is what I get ?
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John Rofrano
August 17, 2011 at 3:41 pm[Mark Krueger] “I dont’t understand what you mean here…..
I purchased some “blu-ray” formatted discs … but this is what did’nt work… can you explain some more “Do you have a Blu-ray burner? You need one to create Blu-ray discs. Once again, creating a Blu-ray formatted DVD was a valid argument when Blu-ray burners were $600. They are now $100 so just buy a Blu-ray burner and make real Blu-ray discs.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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