^ No, not Rockbox. Mine is a 64 GB iPod Touch (not sure exactly which generation), probably five or six years old, so I tried a couple of the apps available for iOS. One, which was paid, was called FLAC Player. It was supposed to be good, but hung up regularly. I also tried a couple of free ones that were similarly afflicted (or worse). So ALAC it is! Actually, if my stereo firmware hadn't been upgraded to allow ALAC playback, I probably would have stuck to FLAC and just played AAC on the iPod (it's so noisy on the train that it probably doesn't matter very much)...