Originally Posted By oddi
Me used mingw+qt 4.8.4 / win8.1upd.1/x64.

Yep, I can confirm that MinGW + Qt 4.8.4 (MAME dev-tools) on Win 7 x64 has an issue with MNG videos... oh man... the VC++ builds don't show this problem.

A mind is like a parachute. It doesn't work unless it's open. [Frank Zappa]