In terms of what they are, no way to tell. People often boil brisket though.
As for 2008, it would totally depend on the way it was stored. Even a good chest freezer for the home, as long as it is not self-defrosting, you should be okay. That being said, I would unwrap and take a look.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"perhaps...but then again...maybe not..."