--- /dev/null
+
+Tools to check aspect ratio:
+http://size43.com/jqueryVideoTool.html
+
+Common resolutions:
+http://en.wikipedia.org/wiki/List_of_common_resolutions
+
+Aspect ratio 4:3
+----------------
+640x480
+800x600
+1024x768
+1152x864
+1280x960
+1400x1050
+1600x1200
+2048x1536
+3200x2400
+4000x3000
+6400x4800
+
+Aspect ratio 16:9
+-----------------
+640x360
+853x480
+960x540
+1024x576
+1280x720
+1366x768
+1600x900
+1920x1080
+2048x1152
+2560x1440
+2880x1620
+3840x2160
+4096x2304
+7680x4320
+
+Aspect ratio 16:10
+------------------
+1440x900
+1680x1050
+1920x1200
+2560x1600
+3840x2400
+7680x4800