"parent" and "child" audio streams?
Posted: Wed Jan 21, 2015 6:12 am
Many times ripping blu-rays, I see what appears to be "parent" and "child" audio streams. See:
In this case, the questions are:
In this case, the questions are:
- Are the child audio streams are generated by MakeMKV using the parent stream as source material, or do the child streams actually exist on the disc?
- If the child streams are actually on-disc, what about it makes it a child stream? Does the metadata on the disc designate the 'child' audio stream as representing the same audio that the parent stream does, but at a lower quality?
- Why might there be two DTS master audio streams in English (see above image?) I understand that there could be a descriptive audio service for the blind, but usually that won't come encoded as DTS-HD 5.1 Master Audio, right? What is a reasonable explanation for there being no less than three (3) 5.1 English streams in the above case?