A few related questions have been asked before, but I can't find any threads discussing Stems and backup practices in a more focused manner. I'm just curious as to what all of your practices are after a mix is completed and what stems you save in the long term.
Working here in TV land, I usually keep the full sessions for a decent length of time, but permanently back up a set of stems that I bounce out of the final mix session. This usually includes a single channel Dialogue stem, 5.1 and stereo Ambeince/Background stems, 5.1 and stereo FX+Foley stem (I usually don't have to do to much in the way of foley work, so I just lump it in with my effects). Typically in the past, for stuff at work anyways, all automation is enabled when I bounce out these stems. I do that because we almost never remix something down the road. The stems are more of a backup to reproduce the final mix if necessary after something catastrophic happens; in which case I'll have to get a new one at break neck speed. At least that way all I have to do drop it on a timeline and bounce.
So what do you do, do you keep premix stems or just final mix stems? I'm looking for some good ideas to steal. ;)