I just tried to re-redump a psx game I burned to disc. It was burned with ImgBurn on a Verbatim CD using a redump.org verified image, data track only.
Comparing the original and redumped image, I found that they differed in 4 byte sequences that repeated every 8 sectors or so. The original image always had zeros in these places and the redumped image had seemingly random values.
I was just curious how this comes? Seems like it doesn't affect any data that is actually used by the game? Is this to be expected or is it due to a shitty burning hardware?
Sorry for the stupid question, but I want to understand what's happening here. 