# Synchronize videos with events

## Aim

To synchronize the MediaRecorder videos with the event log of The Observer XT.

## When is manual synchronization not needed?

Videos created by MediaRecorder are automatically synchronized with the events in The Observer XT when you followed the procedure in [MediaRecorder with The Observer XT](https://bookstack.noldus.com/link/443#bkmrk-page-title).

An automatic offset is applied to the videos. See [View the automatic offset of videos imported into The Observer XT](https://bookstack.noldus.com/link/452#bkmrk-page-title) to see which offset was applied.

## When is manual synchronization needed?

You need to synchronize videos and events manually in the following situations:

- You start video recording manually and import the videos into The Observer XT.
- You have an older version of The Observer XT that does not support N-Linx data transfer.
- See [Synchronize manually](https://bookstack.noldus.com/link/453#bkmrk-page-title) for the procedure.