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***Citizen's NTSC DVD/PAL DVD/XviD Info and Feedback Thread***
That's no moon. It's a LaserDisc.
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
That's no moon. It's a LaserDisc.
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
That's no moon. It's a LaserDisc.
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
That's no moon. It's a LaserDisc.
good stuff.
Stupid question at this point but can someone explain the "ITU-R BT.601-4 standard"?
In all this years I've never selected the option because the results seem suspect. When should it be used?
Dr. M
I can't explain the detail of the standard off the top of my head - something to do with the how digital video is displayed in the analogue realm.
But what it basically means is that 4:3 and 16:9 DVDs are actually 1.368:1 and 1.823:1 (not 1.333:1 and 1.778:1 as you'd expect).
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
Yeah, I think I understood that much, but I'm just never sure under what conditions it should be used in the calculator.
Dr. M
There's no real way to be sure. For example, if you are upscaling a DVD to 1080p, then the standards say you should first crop the sides to leave you with a res of 704* x 480, then upscale to 1920 x 1080.
But this is assuming the DVD was mastered correctly to standards in the first place.
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
And I assume then that going from DVD to DVD or HD source to DVD you would not need to check the ITU box?
Dr. M
From DVD to DVD it depends on whether your source confirms to the ITU standard, and whether you want your output to conform also. Assuming yes and yes, or no and no, then it doesn't matter whether you tick the box or not.
From HD source to DVD, tick the box if you want your DVD to conform to the standard.
Guidelines for post content and general behaviour: read announcement here
Max. allowable image sizes in signatures: reminder here
I went back and did some technical reading online about this. That stuff really makes my head hurt.
I'm still not sure when or where, but I suppose it's becoming less and less important.
Dr. M