It saves them to backup files - additional files not your actual document. It lets you recover if you crash without saving. It also lets you revert to previous versions.

All software that I write does this. All software should do it. As well, When I do it, I make it a configurable option to turn it on and off, and how many backups to keep, and should it make a backup automatically when you explicitly save.

If I were doing this for Poser, I'd not only do it on a timer, but also have an option to do it prior to rendering instead of just based on a timer, since it is rendering that usually causes Poser to crash.

I've not had Poser Pro crash, ever, BTW.

I'm taxing it pretty heavily. I just tested a 744 node shader that generates clouds out to 30 miles.

For those of you who may be looking for my work and want to judge how realistic it is, don't look in my gallery. I don't post there except for amusement. My best stuff is posted in forum threads. I'm not interested in "displaying" my "art". I'm interested in discussing technique and teaching others how to do it.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)