In recent years, the company began selling special jazz and blues CDs, which in some cases were special compilations that had been put together for Starbucks to use as store background music. The idea for selling the CDs originated with a Starbucks store manager who had worked in the music industry and selected the new "tape of the month" Starbucks played as background in its stores. He had gotten compliments from customers wanting to buy the music they heard and suggested to senior executives that there was a market for the company's music tapes. Research that involved looking through two years of comment cards turned up hundreds asking Starbucks to sell the music it played in its stores. The Starbucks CDs, created from the Capitol Records library, proved a significant addition to the company's product line. Some of the CDs were specifically collections designed to tie in with new blends of coffee that the company was promoting. Starbucks also sold Oprah's Book Club selections, the profits of which were donated to a literacy fund supported by the Starbucks Foundation.