will send you today or tomorrow. Those subtitles are overlay graphic (OGT) and exist as svcd-style and cvd-style (read below). The sample will be with CVD.
Here some tech info I found about it, maybe it helps:
"the following info. maybe useful to the
developers. It is copied from VCDImager manual.
2.5.2.2 SVCD Subtitles
There exist two major subtitle formats for SVCD's, of which only one
is officially supported. The non-compliant one has it's origin in the
so-called CVD format, a competitor for the Video CD 2.0 successor. The
real SVCD subtitle format is part of the Super Video Specification,
wheras the CVD-style subtitle format is not. Alas the latter one is
more widely used, due to older pre-SVCD aged software only supporting
the non-compliant CVD subtitle format.
Compliant SVCD subtitles are transported in a private_stream_1 stream
with only the private_data_id 0x70(19). The sub_stream_id is used to
distinguish between the 4 available subtitle channels.
As of the time of writing, there is only a proof of concept
implementation (read hack) for creating proper SVCD subtitles. The
source code is available from the contribs download directory, but its
use is not recommended for production use. If you are searching for a
new free software project, you could take this as an idea...
(19)
While AC3 tracks use the private_data_id 0x80+, DVD subtitles 0x20
onwards and CVD subtitles 0x00 and up."
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