The EBAY Report
eBay is a good place to find unreleased scores. The price can be astronomical at times, depending on how rare the score is. However, huge price doesn't mean great sound quality. Sometimes, even official promos are lossy-sourced.
I prepared a list of scores I checked myself, to get a better feeling of how many money you should spend for a specific score.
The following CDs available on eBay have been reported lossy:
Craig Armstrong: The Magdalene Sisters (2002)
First Artists Management Promo | 9 Tracks | 23:16 min.
Christophe Beck: Waiting For Superman (2010)
For Your Consideration Promo | 41 Tracks | 69:01 min.
Graeme Revell: The Negotiator - Recording Sessions (1998)
Bootleg | 76 Tracks | 182:02 min.
John Debney: The Change-Up (2011)
Promo | 45 Tracks (38/45 lossy) | 53:38 min.
Mark Mothersbaugh: The Life Aquatic With Steve Zissou (2004)
For Your Consideration Promo | 11 Tracks
The following CDs available on eBay have been reported lossless:
Aaron Zigman: John Q (2002)
Blue Focus Management Promo | 13 Tracks | 26:15 min.
Alberto Iglesias: The Kite Runner (2007)
For Your Consideration Promo - Best Score | 31 Tracks | 75:13 min.
Alexandre Desplat: The King's Speech (2010)
For Your Consideration Promo - Best Score | 18 Tracks
Angelo Badalamenti: Inside The Actor's Studio (2008)
Promo | 1 Track | 9:16 min.
Christopher Young: Tales From The Hood (1995)
Intrada Promo | 7 Track | 53:22 min.
Edward Shearmur: Jakob The Liar (1999)
For Your Consideration Promo - Best Score | 14 Tracks | 42:16 min.
Gabriel Yared: In The Land Of Blood And Honey (2011)
For Your Consideration Promo - Best Score | 34 Tracks
George S. Clinton: Joe Somebody (2001)
Agency Promo | 49 Tracks | 66:58 min.
Howard Shore: Hugo (2011)
For Your Consideration Promo - Best Score | 49 Tracks | 78:34 min.
John Swihart: Youth In Revolt (2009)
First Artists Management Promo | 21 Tracks | 16:13 min.
Teddy Castellucci: Little Nicky (2000)
Blue Focus Management Promo | 24 Tracks | 44:15 min.
Theodore Shapiro: 13 Going On 30 (2004)
Promo | 29 Tracks
Thomas Newman: The Help (2011)
For Your Consideration Promo - Best Score | 27 Tracks
Thomas Newman: The Iron Lady (2011)
For Your Consideration Promo - Best Score | 23 Tracks
