A new build of Cxbx-Reloaded, an Xbox emulator for Windows, has been released which runs Panzer Dragoon Orta significantly better than previous efforts. Some new footage has been released showing almost the entire first episode running on the emulator:
The Cxbx-Reloaded project began its life as a fork of the older Cxbx emulator, but with added 64-bit support. Cxbx-Reloaded is under active development, so support for Panzer Dragoon Orta may improve over time. You can follow the project over on GitHub.