It's always been illegal, even for personal use. See
http://www.copyright.gov/help/faq/faq-definitions.html for a useful faq. The most applicable questions here are:
5.
What is copyright infringement?
As a general matter, copyright infringement occurs when a copyrighted work is reproduced, distributed, performed, publicly displayed, or made into a derivative work without the permission of the copyright owner.
and another faq there, at
http://www.copyright.gov/help/faq/faq-fairuse.html
4.
How much of someone else's work can I use without getting permission?
Under the
fair use doctrine of the U.S. copyright statute, it is permissible to use limited portions of a work including quotes, for purposes such as commentary, criticism, news reporting, and scholarly reports. There are no legal rules permitting the use of a specific number of words, a certain number of musical notes, or percentage of a work. Whether a particular use qualifies as fair use depends on all the circumstances. See
FL 102, Fair Use, and
Circular 21,
Reproductions of Copyrighted Works by Educators and Librarians.
As noted above, though, no one is likely to prosecute you for such personal use. That doesn't make it legal, though.