I have some music files that are in AIFF 96k/24bit resolution. While I know the iPhone won't play them in HiRez, I can't seem to add them to the iPhone. I see them on the play list, but just won't transfer. On a side not I use a old iPhone (3 or 4?) as a iPod . The files DO transfer over. Is the something on the 6 or new IO9 that is preventing this ? I tried converting the sample rate down to 44k and it did transfer, I just don't want to create multiple files.