I keep seeing recommendations for par/par2 but it seems like as software, the project isn't actively maintained? As an aside, that makes me think of dead languages and the use of latin for scientific names because it isn't changing anymore... but do you want that out of archival formats and software?
The fork compiled for me this week, when the official 0.3 version on Sourceforge wouldn't. I vaguely remembered par3 being discussed, but couldn't find anything usable. And that's an example of why to be wary of new formats, I guess?
