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DVD studio pro downgrading my video

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Noah Jensen
DVD studio pro downgrading my video
on Mar 15, 2013 at 2:52:43 am

I just finished a 14 minute film shot in HD on a JVC GY-HM700U. On my computer the video file takes up 23 GB of Space but when I import to DVD studio pro it takes up less than 1 GB of disc space. The video then looks horrible. The same thing happens when I import the video into roxio toast to burn a blu-ray disc. Whats going on?


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eric pautsch
Re: DVD studio pro downgrading my video
on Mar 15, 2013 at 6:43:30 pm

What do you mean by " horrible"

Video need to be compressed to get it on a disc. 23 gig doesn't fit

What codec are you editing? How long it is? What's your nitrate?



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eric pautsch
Re: DVD studio pro downgrading my video
on Mar 15, 2013 at 6:43:30 pm

What do you mean by " horrible"

Video need to be compressed to get it on a disc. 23 gig doesn't fit

What codec are you editing? How long it is? What's your nitrate?



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eric pautsch
Re: DVD studio pro downgrading my video
on Mar 15, 2013 at 6:45:10 pm

What do you mean by "horrible"

All video needs to be compressed to fit to disc.

What codec are you editing? How long is it and what's your bitrate?



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Bill Stephan
Re: DVD studio pro downgrading my video
on Mar 15, 2013 at 9:12:47 pm

What software or hadware did you use to encode the video to MPEG-2 for the DVD? Or are you merely dropping the Quicktime from your edit system into DVDSP. That will give you a mediocre quality encode.

Bill Stephan
Senior Editor/DVD Author
USA Studios
New York City


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Noah Jensen
Re: DVD studio pro downgrading my video
on Mar 15, 2013 at 11:52:49 pm

Sorry, I should have been more explicate. I exported a QT file from Final Cut Pro that is 23.08 GB and Used compressor to make an MPEG-2 file which is about 600 MB. Seems a little small for HD to me, even if it is only 14 minutes of video. When I drop that into DVDSP the image quality that plays back almost looks like it was shot with a one chip camera.

The really weird thing I'm not comprehending is the similar thing that happens in Roxio Toast. I drop the 23 GB QT file into a blu-ray disc project and Roxio reads that QT file as 882.8 MB. Why?


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eric pautsch
Re: DVD studio pro downgrading my video
on Mar 16, 2013 at 12:49:24 am

That's about right

DVD Isn't HD.

You'll have to post an example



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Michael Slowe
Re: DVD studio pro downgrading my video
on Mar 17, 2013 at 7:45:42 pm

Noah, in my opinion your workflow is responsible for the disappointing result.

You shoot in HD and export your programme to a QT .mov, presumably still in HD, say ProRes? Now, to make a DVD the media needs to be downscaled as DVD's are SD. The downscale is critical and I've seen some pretty poor ones. I use BitVice for my encode and that downscales at the same time, brilliantly. I don't go to Studio Pro until I have my m2v and ac3 files (video and audio). Studio Pro does the mixing and them the resultant .img goes to Titanium Toast for burning.

If I'm keeping in HD for Blu-Ray I use Toast to encode and burn. All this software is reasonably cheap but the results are as good as anything else I see.

Michael Slowe


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delphine morris
HD to DVD result interlaced
on Apr 9, 2013 at 10:30:04 pm

Hi all! I don't do many dvds theses days but for this project I need output in HD (for computers, public presentations etc) and also on DVD SD for smaller distribution. faced with a deadline and panicking, I thought my workflow was foolproof but DVD results are interlaced, jagged, video stuttering: unbearable. Where am I going wrong?

Footage shot on a Canon XF100, HD 1920 -1080i, brought into FCP via pro res into a 1920-1080i sequence, output to QT as is, brought into compressor and put through a classic setting for DVD (see below), then into DVD studio pro. All looks good on screen but once dvd is burned is is all wrong.

Also HD QT from Interlaced sequence is not surprisingly ... interlaced, am I better of putting in progressive sequence in FCP first before QT export or transcoding after?

Any ideas how I can fix this?

in compressor:
images:
Description: MPEG-2 elementary stream for DVD Authoring
File Extension: m2v
Estimated size: 2.48 GB/hour of source
Type: MPEG-2 video elementary stream
Usage:SD DVD
Video Encoder
Width and Height: Automatic
Selected: 720 x 576
Pixel aspect ratio: PAL CCIR 601 (16:9)
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls Automatically selected:
Retiming: (Fast) Nearest Frame
Resize Filter: Linear Filter
Deinterlace Filter: Fast (Line Averaging)
Adaptive Details: On
Antialias: 0
Detail Level: 0
Field Output: Same as Source
Start timecode from source
Aspect ratio: Automatic
Selected 16:9
Field dominance: Automatic
Average bit rate: 5.5 (Mbps)
2 Pass VBR enabled
Maximum bit rate: 7.2 (Mbps)
High quality
Best motion estimation
Closed GOP Size: 1/2 second, Structure: IBBP
DVD Studio Pro meta-data enabled

sound:
Description: Dolby Digital Professional for DVD, Blu-ray and AVCHD authoring
File Extension: ac3
Estimated size: 86.4 MB/hour of source
Audio Encoder
Sample Rate: 48.000kHz
Channels: 2
Bits Per Sample: 16
Target System: DVD Video
Data Rate: 192 kbps
Compression Preset: None
Audio Coding Mode: Selected
Audio Coding Mode: 2/0 (L, R)
BitStream Mode: Complete Main
Center Mix Level: -3dB
Surround Mix Level: -3dB
Dolby Surround Mode: Dolby Surround
LFE Exists: No
Dialog Normalization: -31 dbFS
Copyright Exists: Yes
Original Content: Yes
Audio Production Information Exists: No
RF Overmodulation Protection: Off
Channel Bandwidth Lowpass Filter: On
DC Highpass Filter: On
LFE Channel Lowpass Filter: On
3dB Attenuation: Off
phase 90: On
Deemphasis: Off


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