Whats that stuff growing on my beer?

[condonagon]

So i just brewed an all grain batch of beer a couple weeks ago. I left it in primary fermentation for a little longer than normal cause i was lazy, maybe almost 3 weeks. i went ahead and racked it into some secondary fermenters just out of habit, and about 3-4 days in i noticed some mold like business growing on the surface of my beer. now, what i wanna know is, is it mold? and can i still drink the stuff or will it hurt me and my friends?

 

[jaycount]

That appears to be a lacto infection, my good sir.

It won't hurt you, but it probably wont make the beer taste very good. There's plenty of info on here about lacto infections if you search.