Hi, thanks! That's great to get more information on the origins of the project! I don't know Mr Lau but I will check with the guy that told me the story. I guessed that increasing the disc speed was your solution too. 60kHz seems a bit extreme to me but at least the original wobble is not an issue a...

Hey, that's quite nice that you are in this industry! The idea for replicating the copy protection was explained quickly in a youtube comment of a former Datel engineer that I mentioned earlier in this thread. It's not something that we can insert into an iso file, it's basically made the same way a...

Yeah, UniROM basically uses the same way to load the game executable (SYSTEM.CNF -> PS1 exe). It just doesn't need to stop the disc and instead applies the nocash unlock before loading the game (except for japanese PS1s where the unlock code doesn't work hence the stop disc option in the menu). Ther...

There is nothing related to the nocash unlock. Basically, this is just stopping the disc with CdControlB() (CdlStop as 1st parameter), then loading SYSTEM.CNF from the swapped game to know its executable path and use LoadExec() to launch it. I guess that's exactly what are doing the boot discs like ...

1) Yep, I can literally burn almost any pattern but burning the 3 words will be even less reliable until I can find how to solve the other issues. FYI, Datel did exactly that, here is a capture of the breaker pro I have (blue = tracking signal CL709 on PU-18, yellow and pink = SCEx signal and gate o...

I can't find any good pictures that are showing how the normal CDR wobble should look like... now I am wondering if that's the same kind of wobbling at all (especially as the PSX wobble appears to generate that audible sound in the drive mechanics, I guess regular CDRs won't do such things). On the...

Interesting finding! Btw, I just noticed that the CXA1782BR, CXD2516Q and CXD1199AQ chips (well, another revision to be exact, the CXD1199BQ) are also used in the PS1 PU-7 motherboard.
See https://problemkaputt.de/psx-spx.htm#pi ... setsummary in the list of CDROM chips.

After using these drive for a bit, I have some more info I can share. My SCPH-1000 still works really well with it. There is something really weird about picking up the wobble on the super old console models that have manual Bias and Gain however. Sometimes it just doesn't pick up the SCEI signal. ...

So, I actually bought this drive recently and I am quite doubtful on its build quality (and more generally on "bad" made in china replacements). There are several things I noticed on the one I have: - The spindle hub is not great, this makes the disc spinning a bit wobbly and the reading o...

The converter board design seems pretty simple, are there any hardware people that can explain how it works? I got these images from a review, but I actually ordered quite a few of these things while they were still in stock. I looked at this board a bit and it is actually simple to understand once...

Oh, I realize this was already mentioned in the link alexfree posted that I didn't read... Anyway, I did a bit more research to play CD-RW on PS1 and there is maybe a way to achieve it without increasing the laser diode power by adjusting the receiving gain but it would need to replace the RF amplif...

I just had a thought. I wonder if this external could possibly read CD-RWs.The answer seems to be maybe, I have to get some: https://audiokarma.org/forums/index.php?threads/older-cd-players.629856/#post-8342955 . I bet Verbatim DataLifePlus CD-RWs would have a good chance at working. Unrelated, but...