Based on the standard naming conventions for this software, the title you provided appears to refer to version 1.0.521 of Asynthetic PDPlayer.
While Pdplayer was a staple in the industry, it has been succeeded by Chaos Player Chaos Forums Chaos Player
Multi-layered EXR Support: One of Pdplayer’s standout features is its ability to handle multi-channel OpenEXR files. You can toggle between beauty passes, depth maps, normals, and specular layers instantly within the player.
Pdplayer is a professional, high-performance image sequence player and viewer designed specifically for the 3D, CG, and VFX industries. It is optimized for quality control, allowing artists to review complex renders and 3D animations in real-time with a layer-based workflow similar to Adobe After Effects or Nuke. Core Capabilities for VFX Workflows
