I used to play flac files on my Octane (300 MHz,1 CPU). Given how little load it caused, I'd expect it to work well on a O2 180mhz r5k. Perhaps you are using a

I used to play flac files on my Octane (300 MHz,1 CPU). Given how little load it caused, I'd expect it to work well on a O2 180mhz r5k. Perhaps you are using an older still iris machine though? While just about any device can play .wav, many devices have so little storage that I find myself ripping on flac, the re-encoding to something lossy and lower bit rate to get a reasonable amount onto a mobile device.