Soundtrack Pro

Soundtrack Pro was a music/audio creator/editor program which was in at one point included with Apple's Logic Studio software. While it supports various other file formats, it has a native format for saving its projects.

Links

 * Converting Soundtrack Pro files to MP3 or wav
 * Where Are My Soundtrack Pro Files?
 * Importing Soundtrack Pro projects into Logic
 * Soundtrack Pro User Manual
 * Soundtrack Pro 3 User Manual