Audiophile is an achievement in Halo 3: ODST and Halo: The Master Chief Collection. The player obtains this achievement when they have found all Audio Logs in the Campaign. It is worth 75 Gamerpoints in Halo 3: ODST and 10 Gamerpoints in Halo: The Master Chief Collection.
It is represented by a gray square with audio lines going across it, with "100%" written in the lower-right corner, and a picture of the Superintendent looking happy.
- There is a glitch when trying to unlock this achievement that when you unlock 29 of the 30 audio logs, the 30th cannot be unlocked. The only way to unlock the 30th when a player has this glitch is to play co-op from the beginning of the campaign to data hive. Take note that this may not always work.