# Data Recording / Data Replay **URL:** https://forum.rtmaps.com/c/data-driven-development-use-cases/11.md [Latest](https://forum.rtmaps.com/latest.md) · [Categories](https://forum.rtmaps.com/categories.md) · [Tags](https://forum.rtmaps.com/tags.md) --- ## [About the Data Recording / Data Replay category](https://forum.rtmaps.com/t/about-the-data-recording-data-replay-category/22)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0
A place to talk about Data Driven Development Use cases --- ## [Time synchronization](https://forum.rtmaps.com/t/time-synchronization/219)
**Author:** [@keerthana\_kothakapu](https://forum.rtmaps.com/u/keerthana_kothakapu)\ **Replies:** 3\ **Last updated:** [July 24, 2026, 6:58am UTC](https://forum.rtmaps.com/t/time-synchronization/219 "2026-07-24T06:58:37Z")
I’m experiencing a Time synchronization issue in RTMaps while fusing Camera, LiDAR, Bounding Boxes, and ClassID data. The Bounding Boxes, and ClassID timestamps are synchronized as they from same GT Camera, but the LiDAR… --- ## [Unable to save data in RTMaps (video, audio, vector, kml)](https://forum.rtmaps.com/t/unable-to-save-data-in-rtmaps-video-audio-vector-kml/214)
**Author:** [@Amrit\_Ghimire](https://forum.rtmaps.com/u/Amrit_Ghimire)\ **Replies:** 1\ **Last updated:** [February 26, 2026, 12:51pm UTC](https://forum.rtmaps.com/t/unable-to-save-data-in-rtmaps-video-audio-vector-kml/214 "2026-02-26T12:51:53Z")
Hello, I am using multiple sensors to collect video, audio, gps position and a vector of several data. The data viewer and image viewer displays the data, meaning the components are working. However, the data is not bei… --- ## [Corrupt .rec file recordings. How to fix? Is data lost?](https://forum.rtmaps.com/t/corrupt-rec-file-recordings-how-to-fix-is-data-lost/104)
**Author:** [@LiL](https://forum.rtmaps.com/u/LiL)\ **Replies:** 1\ **Last updated:** [June 7, 2024, 10:26am UTC](https://forum.rtmaps.com/t/corrupt-rec-file-recordings-how-to-fix-is-data-lost/104 "2024-06-07T10:26:47Z")
Hi, for a long time I have observed that when I run some RTMaps diagrams, sometimes there are several records in the end of the recording corrupted, the replay can still finish but loading the recording in the Player ca… --- ## [How do i loop a player ?](https://forum.rtmaps.com/t/how-do-i-loop-a-player/76)
**Author:** [@duorhs](https://forum.rtmaps.com/u/duorhs)\ **Replies:** 1\ **Last updated:** [April 16, 2024, 3:06pm UTC](https://forum.rtmaps.com/t/how-do-i-loop-a-player/76 "2024-04-16T15:06:23Z")
How do i loop a player (video) within the same diagram so that it plays over and over again until a given condition? --- ## [How to replay Kitti data at a different framerate?](https://forum.rtmaps.com/t/how-to-replay-kitti-data-at-a-different-framerate/27)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0\ **Last updated:** [March 19, 2024, 3:07pm UTC](https://forum.rtmaps.com/t/how-to-replay-kitti-data-at-a-different-framerate/27 "2024-03-19T15:07:32Z")
Kitti dataset are recorded at 10 FPS but in some cases you might want to be able to replay at a higher framerate. To achieve this with RTMaps, you first have to record the output of a Kitti Importer component. Then, si… --- ## [How to perform step by step replay?](https://forum.rtmaps.com/t/how-to-perform-step-by-step-replay/26)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0\ **Last updated:** [March 19, 2024, 3:05pm UTC](https://forum.rtmaps.com/t/how-to-perform-step-by-step-replay/26 "2024-03-19T15:05:57Z")
The Player component is capable of playing back data step by step – or more accurately sample by sample. Remember RTMaps is not based on a central (or even per-stream) periodic sample time but on asynchronous timestampe… --- ## [How to concatenate several .rec files?](https://forum.rtmaps.com/t/how-to-concatenate-several-rec-files/25)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0\ **Last updated:** [March 19, 2024, 3:02pm UTC](https://forum.rtmaps.com/t/how-to-concatenate-several-rec-files/25 "2024-03-19T15:02:34Z")
In some cases, you might want to stitch together several .rec files. While we do not offer any tools for this feature (such as the rec\_splitter for the opposite operation) you can easily do it manually. For example, le… --- ## [A note about Rec Splitter timestamps and offsets](https://forum.rtmaps.com/t/a-note-about-rec-splitter-timestamps-and-offsets/24)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0\ **Last updated:** [March 19, 2024, 2:59pm UTC](https://forum.rtmaps.com/t/a-note-about-rec-splitter-timestamps-and-offsets/24 "2024-03-19T14:59:45Z")
The rec\_splitter tool (found in the /bin folder of your RTMaps installation directory) requires timestamps to be specified in microsecond. Which is something to keep in mind when splitting recordings with an offset (in … --- ## [Periodic Recording Splitter](https://forum.rtmaps.com/t/periodic-recording-splitter/23)
**Author:** [@Teo](https://forum.rtmaps.com/u/Teo)\ **Replies:** 0\ **Last updated:** [March 19, 2024, 2:58pm UTC](https://forum.rtmaps.com/t/periodic-recording-splitter/23 "2024-03-19T14:58:57Z")
As you begin collecting more and more data, you may want to periodically split the recording into separate, smaller recordings for one reason or another (to have 10x 30-second recordings rather than 1x 300-second recordi…