yeah and I also do not agree that testing is a waste of time or you can save time by just asking and take everything for granted. Verify it ! check if the claim about this sector is correct by generating a fresh sample hash.
The more confident you (yourself) are about the right 512 bytes and the correct way to crack a sample, the better it is.
It's always worse to spend several dozens/hundreds of hours on an uncrackable hash than just try to create a sample within a few minutes and know exactly what is going on and how a correct cracking process would look like. It's not a waste and you shouldn't be too lazy when it comes to getting confident with the right input and output and cracking steps.
The more confident you (yourself) are about the right 512 bytes and the correct way to crack a sample, the better it is.
It's always worse to spend several dozens/hundreds of hours on an uncrackable hash than just try to create a sample within a few minutes and know exactly what is going on and how a correct cracking process would look like. It's not a waste and you shouldn't be too lazy when it comes to getting confident with the right input and output and cracking steps.