How to extract a printed sub in a MP4 file

[epulone]

I have a scientific documentary in mp4. It has a sub printed in , I would like to extract it. I have used Yamb and subrip (suggested in this forum) the last one use an interested function called sub to text via OCR .. but doesn't work. It is very important for me because I can easy study it with a sub written

I will be veri gratefull if some one can help me

Thanks

[Baldrick]

What happens with subrip? No mp4 support? Maybe try convert to avi(winff, xmedia recode) or use avisynth and then open in subrip.

[epulone]

Thanks ...with SubRip i can use only VOB (I have used nero to obtain a VOB file ). I will try the programs sugested and I will let you know

[epulone]

How you can see from the image with SubRip I can use only VOB files.

[burcs]

In Yamb click on "editing > click to extract streams" and open your .mp4 file. If you don't see a subtitle stream there that means it's hardcoded and there is no way to extract it. If you do see a subtitle stream, click on it and "extract to raw format". You can then open the .srt in Notepad to read it or edit it.

[Baldrick]

In subrip under File->Open Hard subbed video files. But it might only work with avi files or avs avisynth scripts.

[burcs]

Cool, subrip can OCR hard subs? I did not know that! /Ed McMahon voice