this doesn't help....
i have mc crash about twice a night and frequently when coming out of sleep. this has been the case for some time. because repeated ctrl-6 can repeat a crash with red Oct i assume that graphics card (ati) or hdmi receiver routed to tv are somehow upsetting madvr. maybe you have the same issue. i have learned to live with it.
it would be good (great) if others could list what they have (cpu, graphics card, tv, receiver etc) and how often you have a crash and maybe we can come up with a good and a bad pile of hardware.
even if Jimh, Matt, Yaobing and the others could list what they have that they know works flawlessly it would be very helpful.
Craig