Thrash metal

Some more powerful metal sounds here.
Toxik - Machine Dream
http://www.youtube.com/watch?v=zo6_kyd1uRw
Toxik - Shotgun Logic
http://www.youtube.com/watch?v=2ZYgEwsUSVA
Pitiful Reign - Visual Violence
http://www.youtube.com/watch?v=97MLacshXqg