Mastering Information File
From GEAR Software Knowledgebase
Below is an example of a Mastering Information File
This file may be present after recording a CD or DVD disc using GEAR Software products, or third party applications that use the GEAR drivers. This file is an 'output' log file, and can be deleted safely.
For GEAR projects that are recorded to CD-R(W), DVD±R(W) media or written to DDP Images, the file is usually found in the GEAR Working Directory: