[Oki Pienandoro]

You have boujou, a $10,000 worth software and didn’t know how to use it ?
Seriously, just watch some basic tutorial.
These kind of scene can be easily done with Mocha, no need for Boujou,..go to Imagineeer System websites and watch basic tutorial.

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Sorry for the english, not native speaker.

[Oki Pienandoro]

Google “masking in after effect”, watch the tutorial.

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Sorry for the english, not native speaker.

[Oki Pienandoro]

Assuming you’re talking about DVD-Video, not some sort of another compression format that were burn as files on DVD, then the answer is yes, you can export 122 minutes video them to DVD-DL (dual layer).

The procedure a little bit different from common DVD single layer burn. You need to build DVD-Video folder, then edit them using PGC-Edit. Oh, and you need imgburn, since imgburn can read layer break information properly.

If you want to push 122 min to single layer dvd, the only option is push the bitrate down, and i can tell you it looks ugly.

Do note however, not every DVD player can read DVD-DL. Many old DVD player can’t read the second layer.

Oh one more thing, if you want to use DVD-DL, make sure it was DVD+R, don’t use DVD-R.

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Sorry for the english, not native speaker.

[Oki Pienandoro]

If you intend to make sky replacement on the whole footage. I don’t think it would work with color correction. The first part of the video is completely washed out (255 on all channel).

The best approach is probably separate them into two/three parts. Since the sky on the later part of the footage is not washed out.
You can key out the white using extract key/luma, put solid underneath

Here’s my take, obviously this can be improved if you’re willing to mask-out trouble area. :
https://www.mediafire.com/watch/jfw2p5uzcdhwifv/12-23-2013_092826.mp4

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Sorry for the english, not native speaker.