> What would happen if I took a version 5 chd that was pre 0.142u2 and did a copy of > that using chdman version 0.142u2? Would that end up with a 'correct' chd? > > Is there anywhere that has the check-sums posted?
You need to be more specific with detail about what you're doing.
CHDs that were dumped as V5 with the latest chdman (at that time) pre 0.142u2 will be just fine. An example of that would be voyager.chd or undefeat/gdl-0035.chd
As far as making a copy I'm unsure why you would need to do that. Always work with the latest version of chdman when possible and applicable.