The cryvac meat always seems to have a sour smell to it. It can be rinsed off with fresh water. I can say that boar meat really stinks. I have worked in the pork industry and know what a boar smells like. If you have ever smelled it you will know what I am talking about. It's the testosterone that makes the meat smell. If you are buying really cheap cuts you might be getting boar meat. Not really likely but possible. Most Boars are used for grinding only, but some can slip through the lines sometimes. If it makes you retch after you rinse it off, better off to throw it out.
BigBrad Connor "Half Baked BBQ Crew" BigBrad's BBQ