In this CD set, David Bercot explains what the Septuagint (LXX) is and relates its history. Jesus and His apostles almost always quoted from the LXX when they quoted the O.T. The LXX was the O.T. of the early church. However, the Roman Catholic Church eventually switched from the LXX to the Masoretic Text (MT), and the Reformers followed suit.
In the 3rd CD of this set, Bercot addresses the popular notion that the MT preserves the exact text of the original Bible writers, without a jot or tittle changed. He also talks about the various ways the LXX will bless you when you begin using it for Bible reading and study.