i usually find most asian stores selling this product, though i have no idea what the name of it is, it comes packed in small or medium sized sticks of meat, air tight wrapped in plastic. they usually come with a some peppers on the side of the meat also. they have little pieces of stringy, see through, chewy like stuff in them as well. very sour and delicious.
pic of the meat. http://www.flickr.com/photos/thenhbushman/4729173942/#/
pic of the meat. http://www.flickr.com/photos/thenhbushman/4729173942/#/