What is the relationship between Western Digital and hard disk drive in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

In October Bloomberg reported that chipmaker Micron Technology Inc and hard disk drive maker Western Digital Corp are in talks with the company about a possible acquisition.

Answer: product_or_material_produced