Whites 'overexposed' after burning to DVD? (DVDA) at DVinfo.net

Jordan Brindle · February 6th, 2012, 12:10 PM

Possibly a stupid question or me overlooking something simple. Whites / skin appears very overexposed/bright after i burn my film to DVD (MPEG2) via DVDA, mostly on outside scene's (sRGB). It has been color corrected. Looks fine on my PC in VLC Media Player, can someone please explain this? Now that im sitting here thinking about it, there's a possibility it may be the picture setting on the TV. Will have to double check but would still appreciate a little input.

Many thanks.

EDIT: While im at it, perhaps i can get 2 birds with one stone. Anyone know why my 4.39GB film is magically turned into 5.2GB when i import to DVDA?

Don Bloom · February 6th, 2012, 01:11 PM

Don't understand why the whites are blown out. Never noticed that with DVDA.
I can tell you that DVDA has a known "bug" that over reads the size of the project by about a half a gig sometimes more. If you look at the mph in explorer it will give you the real size. By the way Dvds are generally 4.3 gigs actual finished space. Has to do with formatting on the disc. Don't wily about what Dvds is saying just make sure the size is right in explorer.

Mike Kujbida · February 6th, 2012, 01:24 PM

Don answered part 2 so I'll take a stab at part 1.
DVDA does nothing to your video so the problem lies in Vegas.
My guess is that the source footage is blown out and needs to be adjusted/corrected.
What does the video look like on your scopes?
If you're not sure how to use them, here's a great tutorial.
Using the Vegas Pro color scopes

Rob Wood · February 6th, 2012, 01:54 PM

when u encode to mpeg-2 (mpg, m2v, etc) the output luma should range from 016 to 235... any clips that go above/below will need a "Computer to Studio" filter (sRGB to YUV) adding to draw the signal back into legal limits.

the above link Mike provided is probably your best bet if you're unfamiliar with setting/using scopes.

Dennis Vogel · February 6th, 2012, 03:18 PM

Also, consider whether your PC monitor is adjusted properly. It wouldn't be surprising if the contrast or brightness might be "off" making everything you see on a different display (TV, etc) look different than it did on your computer.

D

David Jimerson · February 6th, 2012, 04:48 PM

It's probably because a lot of things which look fine on a computer monitor don't necessarily look so fine on a TV screen. You cannot rely on a computer monitor to color-correct for something you're going to watch on a TV.

When you're color correcting, you need to be previewing out to a properly-calibrated NTSC (or PAL, if that's where you are) monitor, or at least a TV you can adjust to be close. Then you'll see what you'll be getting on a TV when you play the DVD.

I would suspect that if you look at your footage in Vegas and check the waveform monitor, you're going to find the whites hitting or exceeding 100. That will cause blowouts. You want to keep them below 100.

Jordan Brindle · February 7th, 2012, 05:58 AM

Many thanks guys, will double check with Sony Vegas scopes and re-render out and thanks for that tutorial above. About the size issue, i burnt one DVD and upon re-opening the project, the correct size was being shown. So yes, definitely a bug!

About a secondary preview monitor, does anyone have any good recommendations between the 300-450$ (£150-250) region? It's about time i got a new one.

Thanks again.

February 6th, 2012, 12:10 PM	#1
Jordan Brindle Major Player Join Date: Feb 2009 Location: UK Posts: 249	Whites 'overexposed' after burning to DVD? (DVDA) Possibly a stupid question or me overlooking something simple. Whites / skin appears very overexposed/bright after i burn my film to DVD (MPEG2) via DVDA, mostly on outside scene's (sRGB). It has been color corrected. Looks fine on my PC in VLC Media Player, can someone please explain this? Now that im sitting here thinking about it, there's a possibility it may be the picture setting on the TV. Will have to double check but would still appreciate a little input. Many thanks. EDIT: While im at it, perhaps i can get 2 birds with one stone. Anyone know why my 4.39GB film is magically turned into 5.2GB when i import to DVDA?

February 6th, 2012, 01:11 PM	#2
Don Bloom Inner Circle Join Date: Jan 2003 Location: Chicago, IL Posts: 6,609	Re: Whites 'overexposed' after burning to DVD? (DVDA) Don't understand why the whites are blown out. Never noticed that with DVDA. I can tell you that DVDA has a known "bug" that over reads the size of the project by about a half a gig sometimes more. If you look at the mph in explorer it will give you the real size. By the way Dvds are generally 4.3 gigs actual finished space. Has to do with formatting on the disc. Don't wily about what Dvds is saying just make sure the size is right in explorer. __________________ What do I know? I'm just a video-O-grafer. Don

February 6th, 2012, 01:24 PM	#3
Mike Kujbida Inner Circle Join Date: May 2005 Location: Windsor, ON Canada Posts: 2,770	Re: Whites 'overexposed' after burning to DVD? (DVDA) Don answered part 2 so I'll take a stab at part 1. DVDA does nothing to your video so the problem lies in Vegas. My guess is that the source footage is blown out and needs to be adjusted/corrected. What does the video look like on your scopes? If you're not sure how to use them, here's a great tutorial. Using the Vegas Pro color scopes

February 6th, 2012, 01:54 PM	#4
Rob Wood Regular Crew Join Date: Mar 2007 Location: Vancouver, Canada Posts: 146	Re: Whites 'overexposed' after burning to DVD? (DVDA) when u encode to mpeg-2 (mpg, m2v, etc) the output luma should range from 016 to 235... any clips that go above/below will need a "Computer to Studio" filter (sRGB to YUV) adding to draw the signal back into legal limits. the above link Mike provided is probably your best bet if you're unfamiliar with setting/using scopes.

February 6th, 2012, 03:18 PM	#5
Dennis Vogel Major Player Join Date: Mar 2004 Location: Hillsborough, NC Posts: 409	Re: Whites 'overexposed' after burning to DVD? (DVDA) Also, consider whether your PC monitor is adjusted properly. It wouldn't be surprising if the contrast or brightness might be "off" making everything you see on a different display (TV, etc) look different than it did on your computer. D

February 6th, 2012, 04:48 PM	#6
David Jimerson Jubal 28 Join Date: Mar 2005 Location: Wilmington, NC Posts: 872	Re: Whites 'overexposed' after burning to DVD? (DVDA) It's probably because a lot of things which look fine on a computer monitor don't necessarily look so fine on a TV screen. You cannot rely on a computer monitor to color-correct for something you're going to watch on a TV. When you're color correcting, you need to be previewing out to a properly-calibrated NTSC (or PAL, if that's where you are) monitor, or at least a TV you can adjust to be close. Then you'll see what you'll be getting on a TV when you play the DVD. I would suspect that if you look at your footage in Vegas and check the waveform monitor, you're going to find the whites hitting or exceeding 100. That will cause blowouts. You want to keep them below 100. __________________ www.wrightsvillebeachstudios.com

February 7th, 2012, 05:58 AM	#7
Jordan Brindle Major Player Join Date: Feb 2009 Location: UK Posts: 249	Re: Whites 'overexposed' after burning to DVD? (DVDA) Many thanks guys, will double check with Sony Vegas scopes and re-render out and thanks for that tutorial above. About the size issue, i burnt one DVD and upon re-opening the project, the correct size was being shown. So yes, definitely a bug! About a secondary preview monitor, does anyone have any good recommendations between the 300-450$ (£150-250) region? It's about time i got a new one. Thanks again.