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Hi,

I will offer some observations I made when I was playing back and processing bags with Kinect data, which may or may not fix your issue.

First, try tweaking the --rate and --queue parameters.

Second, try loading the bag using rxbag, and playing it from there, instead of the command line. Using rxbag, I was able to get better system performance than rosbag play. Also I think it gives you better control over the playback - like starting at specific times or stepping through frame by frame.

Hope this helps,

Ivan