I understand that part of it -- what the disk structure should be.
My question is about how that structure gets there. Does it matter?
Put another way, here is a DVD which has VIDEO_TS and AUDIO_TS directories in it's root directory. Is this DVD therefore and automatically recognized by a video DVD player as being a video DVD simply by virtue of having that structure?
Or is there more to it? Must a disc be burned as a video DVD in order to be recognized as a video DVD? Or can it be burned as a DVD-ROM with the correct directory structure and therefore, because of the directory structure alone, be recognized as a video DVD? (without going into what those directories contain because that's not my question).
I am asking about byte-level disk formatting if that makes it any clearer. Is there, for example, a requirement that the first two bytes of the second sector be 0FFEx in order for this disk to be recognized as a video DVD, whereas a DVD-ROM would have 0FFFx in that position? Things like that.