Audio log

Audio Logs are sound files found at various types of data terminals in Halo 3: ODST and are components of a meta-game called Sadie's Story. These logs tell the story about a Kenyan girl called Sadie Endesha during the invasion of Earth in October 20, 2552.

Unlocking Audio Logs will also unlock Supply Caches scattered throughout the level Mombasa Streets. There are 30 logs in total. 29 of them can be found in Mombasa Streets while number 30 can only be found after acquiring the other 29. Number 30 can be found by following the police officer in Data Hive.

Trivia
The audio logs have some references to Dante's Inferno.
 * There are 9 Circles of audio logs, correlating with the 9 circles of hell in the poem.
 * The thirtieth audio log is found in Dr. Endesha's office on the 9th sub-level of Data Hive.
 * The frozen area where you find the 30th audio log may be a reference to Cocytus, the 9th level of hell.
 * Vergil correlates to Virgil, who led Dante through the nine levels of hell, just as Vergil leads Sadie, and then the Rookie, through New Mombasa.

Warning
Be careful when collecting these for the Audiophile. If your Xbox freezes up when trying to get these the game might think you already got it but it won't count towards the achievment. Because being careful can definitely prevent your Xbox from freezing.

Internal

 * Sadie's Story

External

 * GamesRadar's Audio Logs/Sadie's Story Walkthrough
 * An overview map of New Mombasa and locations of Audio Logs
 * An overview map of all the audio logs with in-depth videos and locations provided by Achievement Hunter from RoosterTeeth
 * Overiew map of New Mombasa and Audio Logs provided by NextgenWalkthroughs