Sony Creative Software has released a royalty-free production music package called the Production Music Collection. Though aimed at video production, the tunes could be used for any broadcast production duty.
The package measures over 1,600 tracks. Each track has four cuts: a 10-second, 30-second, 60-second and full length. Files are 24-bit, 44.1 kHz.
They are available in a variety of themes: ambient, country, electronica, jazz, news, pop, rock urban and world. A searchable database is included.