O.k., this means Android's video libraries cannot handle the video format. It seems a thumbnail can be retrieved, but Android fails to read the length of the video. I'd suggest to use the tool used in http://forum.gps-laptimer.de/viewtopic.php?f=8&t=2278 to convert the GoPro video to something ...

Harry,

Here is what happens when I navigate to the lap, and click the icon for add video:


When I click on the video, I get this screenshot. I can't navigate to the end of the lap and set the marker:


Thanks!

For those of you using Android - I tried to drop the raw Gopro video into the Movies folder so I could overlay lap info over it, but it seems it did not recognize the file. I went through Gopro studio to create a joined file of the session, and exported it to .mov 1080p/30fps, under 2gb. Tried again ...