Quote:
Originally Posted by Alba Ra
Now I'd like to know whether there's a free DVD authoring suite that can use these formats (without re-encoding audio and subtitles)?
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I can't help a whole lot, but if you are trying to make a normal DVD with assets from HD DVD or Blu-ray, you will have to convert ('re-encode') the subtitles as the HD formats use 8-bit PNG (possibly higher) graphics at 1920x1080 resolution with transparency. DVD can only handle 2-bit graphics with no transparency (in the graphic file itself) at 720x480 (and they have to be color-mapped). These will have to be converted before they can be used on DVD. The 5.1 audio should be fine, but the video will have to be re-encoded of course...
Subtitles from BD/HD DVD are not DVD compatible, even if they are in the same format (IDX/SUB). IDX/SUB is just a container basically...