This is a fork of the Cache Explorer tool, written by spath, a member of the CDFreaks (now called MyCE) forums. It aims to obtain information about a CD drive's cache size for audio data and examine if it's possible to disable cached reads in a particular model.
The original post where the source had been shared was luckily archived by the Internet Archive here along with the archive itself. Unfortunately, no licencing information is available, so for all I know I'm infringing spath's copyright by making modifications to the software.
There's also a discussion thread in the Hydrogenaudio forums.
The root commit of this repository represents the source as it appeared in the originally shared archive.