Parameters:
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-beetle-pce-fast/mednafen_pce_fast_libretro.so --config /opt/retropie/configs/pcengine/retroarch.cfg "/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).chd" --verbose --appendconfig /dev/shm/retroarch.cfg
[INFO] RetroArch 1.8.8 (Git 9552f87)
[INFO] Redirecting save file to "/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).srm".
[INFO] Redirecting save state to "/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).state".
[INFO] === Build =======================================
[INFO] Capabilities:  NEON VFPv3 VFPv4
[INFO] Built: Jan 22 2021
[INFO] Version: 1.8.8
[INFO] Git: 9552f87
[INFO] =================================================
[INFO] Loading dynamic libretro core from: "/opt/retropie/libretrocores/lr-beetle-pce-fast/mednafen_pce_fast_libretro.so"
[INFO] [Overrides] no core-specific overrides found at /home/pi/.config/retroarch/config/Beetle PCE Fast/Beetle PCE Fast.cfg.
[INFO] [Overrides] no content-dir-specific overrides found at /home/pi/.config/retroarch/config/Beetle PCE Fast/test.cfg.
[INFO] [Overrides] no game-specific overrides found at /home/pi/.config/retroarch/config/Beetle PCE Fast/Fantastic Night Dreams - Cotton (USA).cfg.
[INFO] [Environ]: GET_LANGUAGE: "0".
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
[INFO] [Environ]: SET_CONTROLLER_INFO.
[INFO] Core requested VFS version >= v1, providing v3
[INFO] [Remaps]: remap directory: /opt/retropie/configs/pcengine/
[INFO] Redirecting save file to "/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).srm".
[INFO] Redirecting save state to "/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).state".
[INFO] [Environ]: GET_LOG_INTERFACE.
[WARN] SYSTEM DIR is empty, assume CONTENT DIR /home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).chd
[INFO] [Environ]: SYSTEM_DIRECTORY: "/home/pi/RetroPie/roms/pcengine/test/".
[INFO] [Environ]: SET_PIXEL_FORMAT: RGB565.
[libretro INFO] Frontend supports RGB565 - will use that instead of XRGB1555.
[INFO] [Environ]: GET_PERF_INTERFACE.
[INFO] [Environ]: SET_SUPPORT_ACHIEVEMENTS: yes.
[INFO] [Environ]: PERFORMANCE_LEVEL: 5.
[INFO] Content loading skipped. Implementation will load it on its own.
[INFO] [Environ]: SET_INPUT_DESCRIPTORS:
[INFO] [Environ]: UNSUPPORTED (#62).
[libretro INFO] PCE CD Audio settings changed.
[libretro INFO] Loading /home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).chd...

[libretro INFO] chd_load '/home/pi/RetroPie/roms/pcengine/test/Fantastic Night Dreams - Cotton (USA).chd' hunkbytes=19584
[libretro INFO] MDFN_MakeFName: /home/pi/RetroPie/roms/pcengine/test/syscard3.pce
[ERROR] Failed to load content
[INFO] Content ran for a total of: 00 hours, 00 minutes, 00 seconds.
[INFO] Unloading game..
[INFO] Unloading core..
[libretro INFO] [Beetle PCE Fast]: Samples / Frame: nan
[libretro INFO] [Beetle PCE Fast]: Estimated FPS: nan
[INFO] Unloading core symbols..
[INFO] [Core Options]: Saved core options file to "/home/pi/.config/retroarch/config/Beetle PCE Fast/Beetle PCE Fast.opt"
[INFO] [Video]: Does not have enough samples for monitor refresh rate estimation. Requires to run for at least 4096 frames.