The DVD+VR standard defines a logical format for DVD-Video compliant recording on optical discs.
For the user, the DVD+VR standard offers the following main features: The DVD+VR format basically defines how to record video in a DVD-Video compliant manner to an optical disc.
The resulting disc should, after finalization, play back on any DVD Video player that can physically read the media.
In order to fill these packets properly, an encoding system needs to examine considerable amounts of video data, both before and after the navigation point.
Video recorder systems typically have too little memory to achieve this fully, so logically a work-around for this has been introduced.