The "specific conditions" are very restrictive:
(1) the library or archives has, after a reasonable effort, determined that
an unused replacement cannot be obtained at a fair price; and
 (2) any such copy or phonorecord that is reproduced in digital format is
not made available to the public in that format outside the premises of the
library or archives in lawful possession of such copy.

Other sections (not all) of Section 108 exclude music.

Sam Brylawski

On Tue, Jul 2, 2013 at 4:26 PM, Mason Vander Lugt <[log in to unmask]> wrote:

> |I have never seen any case-law that says a
> library can't circulate a CDR as long as they hold the original CD.
> I'm a librarian. The right to circulate a 'preservation' copy (under
> specific conditions) is probably my favorite part of the copyright code
> (Section 108) :)