Comment by tomxor

Spinrite is for HDDs, sure you can use it on SSDs but that's fairly useless in the best case and actively destructive in the worst case. The whole point of Spinrite is exploiting the magnetic nature of HDDs for recovery, that's the only thing that distinguishes it from other generic block device analysis and data recovery software. For SSDs there are plenty of open source software that will work just as well for reading raw data (but what you get for unallocated blocks is at the whim of proprietary SSD controllers anyway).

Spinrite had utility for combating data loss inherent to the HDD medium... I don't like the idea of ValidDrive because it's a paid user tool to fight fraud, that's a bad incentive, you don't want to benefit from that, it should be free and open.