Hi Tim, I don't know whether anyone uses Fedora without planetCCRMA for audio(?), so maybe a compromise - FC4+planetCCRMA - is in order? > My first question is: Do I want to go to FC5? I don't think> PlanetCCRMA has anything for it yet, but I'm thinking of running it> OOTB. Is it usable for some simple use of JACK and friends? I hear> that it wouldn't have low latency. Is this true, and does that affect> me if I'm only recording one or two tracks at a time? Yes, latency is still a big issue regardless of how many tracks areinvolved. You need to search the (recent) archives of this list, andthe FC5 docs, for set_rtlimits, PAM, and the kernel version number.You can get good low latency performance with a recent mainstreamkernel, they say! Also, you'll have to do some reading to see what packages will beavailable to you, and what you'll have to compile yourself.