The 3.0 version of MediaEraser for Mac was provided as a free download on our website. The software lies within System Tools, more precisely CD & DVD Software. This free software for Mac OS X is a product of Tony Gray.
From the developer:
MediaEraser is a simple utility for erasing optical media (CD-RW and DVD-RW) on OS X using the OS X Disc Recording framework. It doesn't do anything you can't do with Apple's Disk Utility or Roxio's Toast, but it's much simpler to use. This version supports Intel Macs, from OS X 10.6 Snow Leopard through OS X 10.9 Mavericks.
You may want to check out more Mac applications, such as 4Media DVD to Apple TV Converter, disclabel NEATO Edition or AutoOpen, which might be related to MediaEraser.