On Sun, Jan 16, 2005 at 11:54:25AM -0500, Fulko Hew wrote: > And remember, this CD burn problem _is_ kernel specific. > I will do tests later today with older kernels and this 20 minute > timeout issue > and report back. Yes. My guess at the moment is something involving acpi or the cpu frequency daemon (acpi=off being one test to do). The reason for this is that when the CPU changes speed it has to disconnect from the system busses and reconnect. Thats a complex process and there are chip errata (and also maybe software bugs of course) in this area which might foul up a current DMA transfer. Alan