Official U.S. PlayStation Magazine (often abbreviated to OPM) was a monthly video game magazine, published by Ziff Davis Media. It was a sister publication of "Electronic Gaming Monthly". The magazine focused exclusively on PlayStation hardware, software, and culture, covering the original PlayStation, PlayStation 2, PlayStation 3 and PlayStation Portable. Each issue included a disc that contained playable demos and videos of PlayStation games. The magazine was produced for nearly ten years. The first issue, cover dated October 1997, was published September 23, 1997, while the final issue was cover dated January 2007.