Apple Lossless (.m4a/.mp4/.M4A/.MP4):
Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
Quantization bit: 16 bit, 24 bit
DSD (.dsf/.dff/.DSF/.DFF):
Supported formats: DSF/DSDIFF
Supported sampling rates: 2.8 MHz, 5.6 MHz, 11.2 MHz
Variable bitrate (VBR) files are supported. However, playback times may not
be displayed correctly.
Remote playback does not support the gapless playback.