Maybe a dumb question, but why not convert FLAC to ALAC and playback in the Music app? I've been playing with the idea of converting FLACs to ALAC and playing the files on a iPod 5.5G ( with 512gb drive ) in the native OS vs Rockbox. I've had Rockbox choke on files and mess up my library to the point I have to recover the iPod and start over again. So, I thought about using my iPhone ( 14 Pro ) with ALAC files in the music app and so far they seem to play, but are they playing at 24bit 48ghz, or truncated to 16bit? How would I know?