[ottoman]

I did find a few PSX CDs that were allegedly unprotected but CDRWin and CloneCD had real big problems making a working back-up of them. If my memory serves me right it was "Final Doom" and one of the GT2 CDs and I expect there were a lot more.

I eventually came up with a fail safe method that made a backup of any unprotected psx CD 100% of the time.

I used BlindRead/BlindWrite to make a CDRWin Compatible image of the CD and then used CDRWin to burn the image.

Blind Read/Blind Write has a nibble copy mode, Basically it reads the data as any other standard copy program does until it hits data it doesn't like the look of at which point it switches to nibble mode which just reads 1's and 0's off of the CD without bothering to verify whether the data makes sense. This mode is very slow but has proved very sucessful.

As mentioned before you can also try different copying methods (like raw mode) but only if your burner supports them.

Regards