Fix Version/s: None
VBox 4.3.12 + VBEMP + inbuilt Mesa
-Download MPC HC 1.7.13 from rapps
-download 720x408 sample video helicopter_divxht_asp.divx
-play the file with MPC and observe the aspect ratio in windowed mode
I observed the issue many times already at least since ros 0.4.7RC1.