Does access to so much information in many different media present problems for researchers?

Explain. When you visit a library, besides the physical library, you also have access to thousands of other libraries throughout the world. WorldCat, an Online Computer Library Center, Inc. (OCLC) product, links you to the collections of more than 71,000

(and growing) member libraries of OCLC, giving you access to more than 2 billion records for books, manuscript collections, audiovisual materials, and computer files in a variety of languages