Sarah McLachlan fans who order her new live album, Mirrorball

(June 15), from certain online retailers before July 1 will receive an

e-mail password allowing them to create a four-song custom McLachlan CD

through CustomDisc.com for an additional $4.99. They'll be able to choose

from among eight tracks, including songs left off Mirrorball,

B-sides, remixes and cuts from soundtracks and compilations.

Participating retailers include Borders.com, CD Universe and GetMusic.com.