Muslimmatters.org contains what may be the oldest live recording of the Quran in existence, recorded in Mecca in 1885. Assabile.com offers recitations of the Quran by 250 different readers, along with Islamic songs, lessons and the entire Quran in PDF and MP3 formats.
The 1885 Quran recording was made by a Dutchman on an Edison wax cylinder phonograph and is accompanied by contemporary photographs. Flawlessquran.com has hundreds of clear, beautiful Quran recordings with lovely renderings of the text and MP3 downloads. Flawlessquran.com also has a link to the sister site, Versebyversequran.com, which contains MP3 files of each verse of the Quran and the text of the entire Quran.