Welcome to the Western Digital board. I have been in and out of this stock for over a decade, and it has been a very nice one to play.
Disclaimer: I receive no compensation for posting here, and all posts and information presented are my opinion, and true to the best of my knowledge. Do your own DD, and never risk money you can't afford to lose. I am not offering investment advice, that's up to your broker. WDC has acquired SanDisk as of May 12, 2016 (old ticker SNDK), a global leader in Solid State solutions. http://www.wdc.com/en/company/pressroom/releases/Default.aspx?release=113105ba-cb37-49f6-8fab-de43c41d7334 http://www.wdc.com/sandisk/faq.pdf
On March 8, 2012 WDC acquired Hitachi Global Storage Technologies http://www.wdc.com/en/company/pressroom/releases/Default.aspx?release=96593e40-7be2-4ebf-ad35-68cf58ab194d