Really simple usability suggestion:
Right now you have to click on the little circle and drag it to where you want to seek in a video when playing back something you've recorded.
Please allow clicking anywhere on the seek bar (not sure what else to call it) so that you can skip around in the video easier.
Especially when playing back in the thumbnail sized window, the "hitbox" for clicking on and dragging the little circle around on the seek bar is quite small. Most video players let you click anywhere on the bar to skip ahead or backwards, please add this feature :)