Hey hey, I tried to record over long periods of time (7-9 hours), using jack_rec, which apparently relies on libsndfile for writing audiofiles. I started out using .wav, which broke off after 6:12:49 (2.1G). Next time, I tried using the file extension .w64, which yielded the same result. So, which format, or extension, would work for such periods of time? Thanks and best wishes, Jeanette -------- When you need someone, you just turn around and I will be there <3