Sorry to hang this in the thread but this has picked my curiosity. Unless I misinterpreted it somehow, developers used to say CHD is not precisely an imaging format but a packaging (a container) one just like zip and 7z. That means if you compress a GD-ROM you would get the same GD-ROM if you extract it. If you take an estrange formatting ISO like PC Engine, you'll technically get the same file you used to create the CHD with on extraction (although in a single BIN/CUE instead of the separated file/tracks format most collections do).
What's to stop CHDs from extract them using the same chdman version, then create a new CHD with a current chdman?
|