There are two relevant threads, albeit none with a proper thread name referring to the problem.
Now that you have created a dedicated thread name, we could keep that, but need links to the other threads...
https://www.psxdev.net/forum/viewtopic.php?f=54&t=846
https://www.psxdev.net/forum/viewtopic ...

nocash wrote: March 21st, 2025, 3:06 pm Well yes, that is a known issue, but why do you start a new topic on that?
Use the search function to find the existing threads about ed by ed by.

There was only one other but no solution. Can delete this thread if you'd like though.

I'm getting a strange issue on SCPH1002. PSX logo screen removes letters and always says 'ed by ed by' on all games . Refuses to load on some discs, and crashes on company logo FMVs on others. Please see photos.

I've tried replacing the laser but no change whatsoever. I've had it since 1997 and had ...