I have a 1212M PCI (original version) running with Patchmix on Windows 7 64-bit without problems. I recently upgraded another PC to Windows 8 (legally for $14.99!) and find it much quicker and cleaner (the open-source Classic Shell deals with the whole Start screen interface issue quite nicely).
So I'm thinking of upgrading my 1212M-equipped machine to Win8 while the cheap upgrade price is active ($39 for a win7 machine bought before June 2). I've looked around the net and haven't seen anything definitive about Win8 compatibility for PCI versions. Anyone with experience? Does Patchmix work ok? I know there are no official drivers to come, but I've also seen it said around that Win7 drivers work fine with Win8.
I am successfully using 1616m PCIe on a Win 8 machine. I upgraded from 32bit win 7 to 32bit win 8 using the $14.99 upgrade. I am using the 1616m to rip vinyl.
At first I didn't think the drivers were working right, since I would turn on the breakout box and the lights would be all maxed out like it was locked up. I had not yet installed the mixer software. After a couple of install/uninstall attempts of the drivers, I just ignored the lights on the box and installed the software. After that, all is well. Using Audacity I am capturing vinyl rips just fine to 96k/24. This was yesterday and today.