What are ODM and ASCM files?
What are ODM and ACSM files?
Downloading an ODM file is part of the download process for OverDrive audiobooks, music, and video. Opening an ODM file opens OverDrive Media Console and a download prompt.
What you need to download an ODM file:
OverDrive's mobile app for:
An ACSM file is used to manage and download Adobe eBooks. The file contains information that is required to activate and download the eBook along with DRM copyright protection.
What you need to download an ASCM file: