How to change GOP on Mpeg2

[Djinn]

I have an mpeg2 file which has too long a GOP ratio. How can I convert this file to another GOP but one shorter to bring it into line with a DVD compatible file.

Thanks

[ormonde]

Use "TMPGEnc" or "TMPGEnc Plus". Go to "File" > "Project Wizard" and choose the DVD template (NTSC or PAL). The template will automatically set the correct GOP length.