Create videos with loops and breaks I would like to create a video that will be used in place of a usual powerpoint presentation. For this I need that the video automatically stops a some predefined points or that some regions are looped until I press "play" on the player. 
With the DVD format this can be done in a very contrived way (correct me if I'm wrong).
Is there a way to produce those videos with Blender? Are there other formats that support these features?

Thank you
No, Blender's VSE can only output a single linear video file. Any stop points, or looped sections would need to be provided during playback with the whatever player or app is consuming the video file.