This is very useful and nicely put together. Well done! An easy iframe embed link on the playback page would be nice (pro feature?). Also, being able to target a window using the spacebar (like the native screenshot app) would be useful, as would full screen recording (at the moment if I go to the top left of the screen with the intention of dragging the selection box over the whole screen, the menubar gets in the way). Finally, I noticed that the progress percentage goes backwards sometimes (41% ... 42% ... 43% ... 41% ... 44%)