Bag file filtered with "remove_leading_slashes.py" does not work

[mozmarangoz]

I have a data extracted from the robot using "rosbag record" and laser scan data frame id is "/laser". I know I should remove the slashes in frame id. I used "remove_leading_slashes.py" script to get rid of slashes. When I play the .filtered.bag file with "rosbag play", I can't see any messages in every topic.

[georgflick]

have you checked the rosbag with rosbag info, to see if there are messages in the bag?