These rules will be in effect on October 21, 2020 at 12 AM GMT
When streaming/recording a run you must be able to capture the window to show what emulator is being used.
RetroArch will has specific requirements below. You are able to run without showing the window.
Accepted Emulators: • XEBRA • mednafen • RetroArch (Beetle/Beetle HW) • BizHawk
BIZHAWK SETUP AND RULES BizHawk is able to display the status bar below the game window that must be displayed. You have also to show that all Hotkeys are cleared: Config->Hotkeys->Misc->Clear All Games can only run under the cue format. • PSX > Options • Select either mednafen mode option. • Deinterlace the image is allowed. Select Bob in the same window. • Config > Speed/Skip > Audio Throttle [Important for 2.5 Users] To verify that you are running with Audio Throttle enabled you must hit the increase/decrease speed keys [plus/minus] it will display a message on screen.
RETROARCH RULES You must show settings of the core settings before/after the run. Your settings must match this: • CPU Dynarec: Disabled (Beetle Interpreter) [Default] • Cycles: 128 (Default) • GTE Overclock: Disabled • GPU Overclock: 1x (native) • Skip Bios: Disabled. • Access Method: Synchronous • Loading Speed: 2x (native) • PAL (European) Video Timing Override: OFF Recommended: Keep PGXP Disabled Custom settings are allowed for anything that isn't mentioned such as resolution.
For the quick answer on "why did we drop ePSXe?" That emulator for PC has not been updated in 4 years and despite being the "most accurate emulator"^ it relies on plugins compared to the other four options.
^Due to being closed source, it was able to get away with faking the scores on the PS1 Test Suite. Games that are tested to what ePSXe states it "passed" has outright failed.
(Almost all the rules taken from Tekken series, by Spikestuff)