okay, no clue why that helps. ![Smile Smile](https://forum.selur.net/images/smilies/smile.png)
Try also keeping 'Create qp file chapters' enabled while making sure that 'x264->Frames->Advanced Frame Settings->Open GOP' is disabled.
Cu Selur
Ps.: Using ffmpeg instead of MP4Box for muxing also works.
![Smile Smile](https://forum.selur.net/images/smilies/smile.png)
Try also keeping 'Create qp file chapters' enabled while making sure that 'x264->Frames->Advanced Frame Settings->Open GOP' is disabled.
Quote: So what's "Create qp file chapters" is use for?It makes sure that at each chapter point an I frame is created to make sure that jumping to the chapter point properly works.
Cu Selur
Ps.: Using ffmpeg instead of MP4Box for muxing also works.