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Old 9th February 2003, 18:07   #2  |  Link
mpucoder
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Join Date: Oct 2001
Posts: 3,530
Stream 31 is not "off", it is just very unlikely that it will be present. There can be as many as 32 subpicture streams, numbered from 0 to 31 (0x00 to 0x1f, or substream numbers 0x20 to 0x3f). The designation for "off" is stream 62 (ox3e, combined with the required flag to cause the new value to be stored is 0xbe).
I know IfoEdit is messed up in its interpretation, and we had a long thread about the values. Since that was awhile ago, it bears repeating.
value meaning
00-7f will do nothing, bit 7 must be set to cause any change
80-9f stream 0 to 31 selected, but off
a0-bd meaningless
be no subpicture
bf stream 0 forced, but off - ie, invalid
c0-df stream 0 to 31 selected and displayed
e0-fe meaningless
ff stream 0 forced and displayed.

Last edited by mpucoder; 9th February 2003 at 18:17.
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