Rosbags already support compression. On the command line, run `rosbag compress foo.bag` to try it out. The only supported compression algorithm is BZ2, which is really slow. Perhaps there are people who would appreciate having LZ4 as an alternative option? --- [Visit Topic](https://discourse.ros.org/t/smaller-rosbags-with-hashed-strings/942/2) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: