FLAC-HD is a high resolution audio format for audiophiles to enjoy more than three times the fidelity of a standard audio CD. Typically LivePhish FLAC-HD files are recorded at 24 bit / 48 KHz for maximum fidelity. Follow the instructions in this FAQ for standard FLAC playback to listen to FLAC-HD files. For more information on 24 bit audio, please see these Wiki pages on High-Resolution Audio and Audio bit depth.
FLAC-HD files cannot be played on iTunes without conversion but can also be played on other players likeĀ VLC Media Player
ALAC-HD files are native to iTunes but can also be played on other players likeĀ VLC Media Player.