| Official |
|---|
| 1.18 | Chapter 4 (continued): "The Somebody Else's Problem field is much simpler and more effective, ..." / Chapter 5: "Important facts from Galactic history, number two:" | 3:07 | Douglas Adams | Life, the Universe and Everything | Douglas Adams | Other + Audiobook | | BBC Word for Word | ISBN 0-7540-7565-6 |
| 11.18 | “Life, the Universe and Everything”, Chapter 4, Part 11 / Chapter 5 | 3:07 | Douglas Adams | The Hitchhiker’s Guide to the Galaxy: The Complete ‘Trilogy’ of Five Volumes | Douglas Adams | Other + Compilation + Audiobook | | BBC Word for Word | ISBN 0-7540-7571-0 |
| 1.18 | Chapter 4 (continued): "The Somebody Else's Problem field is much simpler and more effective, ..." / Chapter 5: "Important facts from Galactic history, number two:" | 3:07 | Douglas Adams | Life, the Universe and Everything | Douglas Adams | Other + Audiobook | | Chivers Audio Books | ISBN 0-7540-5521-2 |
| Pseudo-Release |
|---|
| 11.18 | Chapter 4 (continued): "The Somebody Else's Problem field is much simpler and more effective, ..." / Chapter 5: "Important facts from Galactic history, number two:" | 3:07 | Douglas Adams | The Hitchhiker’s Guide to the Galaxy: The Complete ‘Trilogy’ of Five Volumes | Douglas Adams | Other + Compilation + Audiobook | | | |