A couple of days ago, Sony hosted a rather bizarre event for the PlayStation 5. System architect Mark Cerny gave a one-hour presentation, primarily aimed at developers, about what is happening under the hood of the system. Cerny also noted that most of the 100 most played PS4 games will also be playable on the first day of PS5. Fans quickly turned to the Internet to express their frustration and confusion. After all, Microsoft will have all backward-compatible Xbox One games, as well as a large number of Xbox 360s and some OG Xbox games in the X Series. Many believed that Sony had already dropped backward compatibility, But the Japanese company has released a statement for In the statement, Sony said they are planning to have the majority of the more than 4,000 PS4 game library available on PS5. "With all the amazing games in the PS4 catalog, we have dedicated significant efforts so that our fans can play their favorites on PS5. We believe that the overwhelming majority of the more than 4,000 PS4 titles will be playable on PS5," said Sony. The company continued to point out that they are working with developers to ensure that backward compatible games get improved performance and are working on a title-by-title basis to determine what needs tweaking. As for what Cerny was specifically talking about, it was just to give a little idea of how his efforts are going on PS5. "In his presentation, Mark Cerny provided a snapshot of the 100 most played PS4 titles, showing how well our efforts are going. Backward Compatibility. We've already tested hundreds of titles and are preparing to test thousands more as we move toward launch. We'll provide backward compatibility updates, along with many more new PS5 releases, in the coming months. The company is still silent on what exactly the plans for backward compatibility with PS1 – PS3 are.The PlayStation 5 is slated to launch this holiday season.