Hi Alex :) I'll take the next bus and will reply to this mail only because of the 68000 issue. alex stone wrote: I started with the C64 and then used the Atari ST (not STe, not TT etc.). I don't know the Amiga, but the Fairlight. Amiga, Atari ST and Fairlight are based on the 68000. As I've written before, I won't argue for an OSS, I don't use privately and I've explained that there are cracks that do, what I've said. I stopped replying to this topic. The C64 and Atari ST don't have any noticeable jitter, I still have those computers, but reasons not to use them any more. Linux with my machine is a PITA for usage with external MIDI equipment. I don't know if this is fine for Windows on my machine, in January I installed Windows and some audio software, but until now I didn't test if I do have jitter with Windows too, I only tried to fix it for my Linux installs. But I was writing because of the averaged user, not because of my trouble. 64 Studio is the only good working alternative I know, other audio distros don't take care about special problems, e.g. that some systems will disconnect clients when using JACK1, for 64 Studio JACK2 is default. I'm able to configure my Suse etc. for rt-audio, an averaged user isn't able to do this. Maybe to be continued, better if not and I'm half off-line now ;). Ralf