An epic 100 CD chronological documentation of the history of jazz music from 1898 to 1959, housed in four boxed sets. Each box contains 25 slipcase CDs, a booklet (up to 186 pages) and an index. The booklets contain extensive notes (Eng/Fr) with recording dates and line-ups. 31 hours of music in each box, totalling 1677 tracks Each track has been restored and mastered from original sources.