I applied through an employee referral. The process took 1 day. I interviewed at WD (Irvine, CA) in Jun 2011
Interview
The interview were happened easy, smooth and friendly. They are unofficially looking for 5 areas - knowledgeable (technical questions, e.g. basic circuit design, device modeling, equipment usage, ...), your past work experience, characteristics, people skills, willingness to work in WD. Only single on-site interview, then they will evaluate the performance in the interview. If everything is ok, HR will contact and explain the offer.
interview process is really smooth . first round with manager and then next 3 rounds from other team members. they mainly focused on all the basic questions and resume experience and projects.