I'm running a dual boot system with Linux Mint 17 64bit  (excellent free OS) and Windows 8.1 32bit (sadly a necessity for some software)

The excellent RME Digi96/8 vintage PCI soundcard works perfectly under Linux Mint 17 64bit / with Audacity audio software under ALSA audio driver interface. This is great as RME Digi96 is not supported in Windows 8.1.

(How about support RME!)

I'm trying to get Reaper to work with this card as well, but its proving a bit more difficult. Will update if I have any success.