.IBG File Extension
What is an IBG file?
An IBG file contains a graph created by ImgBurn, a program used for burning data, audio, and video discs. It stores graph data about a disc read or write operation, which includes the date the disc was read or written, media type, capacity of the media, amount of data written, length of time, and write or read speed.
IBG files are created by ImgBurn when a user selects File → Export Graph Data... and placed by default in the ImgBurn\Graph Data Files folder. You can turn off the graph data function by selecting Tools → Settings → Graph Data and deselecting "Capture Graph Data".