2 is a posthumous compilation album by American heavy metal band Dio.

Unlike its predecessor, which was only available in the United States and Canada, Vol.

[1] Eddie Trunk, radio host and longtime friend of Ronnie James Dio, provided liner notes for the release.

[1] The album was made available for streaming on the official Ronnie James Dio webstore on August 7, 2012.

William Clark of Guitar International wrote that "This new release captures both of these of extreme emotions that drenched Dio’s later efforts and brings them together fabulously on one disc".