Yeah, that's what I wanted. Thanks.
So, do you like the MainConcept encoder?
Wow, just looked at what was involved. Holy Cow!
Good thing I know how to use Graphedit (to make my 5.1 soundtrack.) I just noticed something, though:
The timecode is in SMPTE format, or hours:minutes:seconds:frames. Since Line 21 Closed Captions is an NTSC format, there are 29.97 frames per second. NTSC timecodes can be displayed in one of two slightly-different formats. In non-dropframe time base, frame counts are translated straight into SMPTE. This is the usual format for NTSC content that has no contact with a broadcast environment. For a broadcast setting, timecodes are easier to work with if you start with 30 frames per second and then subtract 3 % to get 29.97. This is called dropframe time base, and is accomplished by skipping the first two frames at the beginning of every minute for nine out of every ten minutes. Dropframe timecodes are distinguished from non-dropframe timecodes by changing the last colon into a semicolon (00:01:00;04 instead of 00:01:00:04). Note that the difference between non-dropframe and dropframe is purely in how timecodes are displayed; underneath, 29.97 frames are still passing every second. RAW2SCC uses non-dropframe time base by default. [Thanks to Dan Wilson for making this all clear to me.
If I'm not mistaken, this is discussing 23.976 fps, right?