Help me choose between WD My Passport 1 TB or Sony HD B1 1 TB.. I am really confused. WD is big name in Hard disk industry but sony hd b1 also has many positive reviews and a video claiming it to be more sturdy than WD one. Both have same specs, warranty and price. Please help me choose. Also there is one other sony model HD E1/B, how is it different from HD B1