Problem with final dvd

[Chilipepa]

Ok Im building a dvd with dvdit pro6. I got a couple of psd menu files and six mpg I ve already encoded with tmpgEnc. When my dvd its built and I can play it the movies and menus look different. The colors got brighter and lost saturation as if something went wrong during the building process with dvdit pro6. May any codec anything to do with it?
Some light would be very appreciated.
txs.

[Nelson37]

Authoring process should have no affect on video whatsoever.

Brighter and less color displayed HOW compared to previous image displayed ON WHAT?

If you are comparing original image on PC with a TV display, there is likely no error at all. The two devices display image characteristics in a completely different way, you must compensate either with filters, capture settings, or device-specific correction controls.

[Chilipepa]

Before authoring the dvd, the mpg files look fine in pc when played with windvd, winamp or media player, as well the psd files I use for the menu background.
But once dvd its been built in hd and played in pc again with same dvd players images got "brighter", as if highlight areas was overexposed, for instance an orange color background turning to yellow.
txs again

[vico1]

I`ve noticed this on all of my exported bitmaps from movie menus.
In Photoshop or Ulead Photo they look darker on screen.
On most of my custom menus, I have to desaturate the colors and darken
the images.
I think it`s just the nature of the beast.

[mikiem]

If the video's really off, it's possible you did a conversion.

If you start with video that's been encoded for TV, & don't change that colorspace, it should look the same back on a TV. If you change the colorspace (for example in DGIndex), it will look different. If you capture video, you can convert to PC colorspace during capture. The PC colorspace includes white at 255 & your TV doesn't.

Or the video might not really be off -- many players (hard and soft)(& even TVs) can add various enhancements trying to give a theater feel for instance, and these are normally switchable.

For menus, psd is not a native format for DVD -- you actually wind up with a m2v file -- so the problem could be in the conversion to m2v, or it could be in the original image itself. Photoshop has different colorspaces & a filter for NTSC safe you might want to try. When your TV has a picture tube (non LCD etc.), colors at full saturation can cause distortion all over the screen, even audio prob.

Main points at any rate... whatever the source of your video, keep it in TV colorspace if you want to watch it on TV later. Create menus that are safe for the std.s in your location (NTSC or PAL generally), using filters to make sure, and preview on TV if possible to check for over-saturation.

[yoda313]

and preview on TV if possible to check for over-saturation

Just use a rewritable disc for that. Or use a video output on your video card to a tv for verification.

[Chilipepa]

The thing is Im encoding avi to mpeg. What I did here is before authoring de dvd with dvdit pro is encoding avis to mpeg with tempEnc. Theyre ok. Once imported to dvdit pro and built de dvd folder I play these movies and de color's changed as I described before. So would be possible that the problem arises during the buliding process, any idea?
txs guys

[mikiem]

"The thing is Im encoding avi to mpeg. What I did here is before authoring de dvd with dvdit pro is encoding avis to mpeg with tempEnc. Theyre ok. Once imported to dvdit pro and built de dvd folder I play these movies and de color's changed as I described before. So would be possible that the problem arises during the buliding process, any idea?"

A player will see a video file and play it... A player will see a DVD, & to play it it will use whatever decoding software... If the decoding software includes optional enhancements, like PowerDVD does, it might use those enhancements.

Or to say it another way, open a mpg2 in PowerDVD & play it. Open the DVD in PowerDVD, and even though the same mpg2 is in there, it handles playback differently.

Could the prob be introduced during authoring? You normally get out what you put in, but it's possible your editing software is trying to make your stills legal I suppose. For it to alter the video it would have to re-render, meaning instead of 10 minutes or so it would take over an hour to write your layout to HD.