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Old 19th June 2010, 18:55   #10178  |  Link
SomeJoe
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Join Date: Jan 2003
Posts: 315
Quote:
Originally Posted by madshi View Post
The patch is only for HD DVD right now, because the HD DVD spec clearly confirms your comments about how to interpret the XML chapter times. The Blu-Ray spec is quite different. It says:

"The mark_time_stamp shall point to a presentation-time in the interval from the IN_time until the OUT_time of the PlayItem referred to by the ref_to_PlayItem_id, measured in units of a 45kHz clock."

Doesn't sound to me as if I should do * 1.001, or what do you think?

You're right, I agree that the spec seems to be very specific and shouldn't leave any doubt about where the chapter point is. If the chapter points end up being off by a 1001/1000 ratio, then you would surmise that it's essentially an authoring error on the disc -- the timecodes were NDF prior to the BD being authored, and no conversion was applied during authoring.

I'll do some further research and see if I can find some additional info on some of the BDs I have.
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