Hi, Can rosbag be invoked from a .launch file? I tried the following: It gives me the same console output as when i run "rosbag record -a". This is the output after runnling the launch file: ... logging to /home/idryanov/.ros/log/24cb0a36-aa35-11df-82d4-00156d841fe0/roslaunch-idryanov-desktop-13809.log Checking log directory for disk usage. This may take awhile. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB. started roslaunch server http://192.168.1.145:48967/ SUMMARY ======== NODES / record (rosbag/record) ROS_MASTER_URI=http://192.168.1.33:11311 core service [/rosout] found process[record-1]: started with pid [13818] [ INFO] [1282073779.153551281]: Recording to 2010-08-17-15-36-19.bag. [ INFO] [1282073780.179935257]: Subscribing to /splitter/rvs [ INFO] [1282073780.204881536]: Subscribing to /hokuyo_node/parameter_descriptions [ INFO] [1282073780.243645891]: Subscribing to /splitter/m3 [ INFO] [1282073780.282756839]: Subscribing to /splitter/m1 [ INFO] [1282073780.297498781]: Subscribing to /pose2D [ INFO] [1282073780.320485431]: Subscribing to /right_floor_altimeter/height [ INFO] [1282073780.351051293]: Subscribing to /rosout [ INFO] [1282073780.383265250]: Subscribing to /scan [ INFO] [1282073780.488726436]: Subscribing to /tf [ INFO] [1282073780.645444289]: Subscribing to /asctec_proc/imu [ INFO] [1282073780.755088806]: Subscribing to /rosout_agg [ INFO] [1282073780.899634911]: Subscribing to /hokuyo_node/parameter_updates [ INFO] [1282073780.961643402]: Subscribing to /diagnostics [ INFO] [1282073781.019327722]: Subscribing to /splitter/mvs [ INFO] [1282073781.086277163]: Subscribing to /autopilot/IMU_CALCDATA [ INFO] [1282073781.136651245]: Subscribing to /splitter/m2 [ INFO] [1282073781.221266595]: Subscribing to /splitter/lvs ^C[record-1] killing on exit [ INFO] [1282073793.525910011]: Closing 2010-08-17-15-36-19.bag. shutting down processing monitor... ... shutting down processing monitor complete done However, at the end, there is no .bag file saved to the current directory. Ivan Dryanovski