http://bugs.winehq.org/show_bug.cgi?id=15694
--- Comment #8 from Dmitry Timoshkov dmitry@codeweavers.com 2008-10-20 22:23:24 --- Created an attachment (id=16767) --> (http://bugs.winehq.org/attachment.cgi?id=16767) MMIO_ALLOCBUF should be ignored in the case of FOURCC_MEM
Does the attached patch help?