I tried IsoPuzzle but still it does not show the data… any other help… thx thx.
Sorry if this seems like an obvious question but are you absolutely certain that data has been written to these discs?
It would be very unusual for a disc not to show some portion of the data visible in IsoPuzzle even if the files themselves are unrecoverable.
A whole series of them that are absolutely completely unreadable just doesn’t seem right.
If you hold the disc near a window and reflect the daylight on it can you see the division between the written and blank portion?