When Livetagging a match, it is important to follow these steps for proper synchronization:

1. Press "Start first period" (and "Start second period") at the moment the referee starts the match (or second half). This is very important to synchronize the data with the video afterwards.
2. Make sure you record the whole match. Only at halftime you can click pause on your camera. Also during time-outs or injuries, let the camera record. This is also very important for the sync later on.
3. Start recording just before the match starts. If you start 10 seconds later, you cannot sync the statistics to the video: all the video fragments will not be in the right place if you do this.