Audio Format: Apple AAC @ -tvbr 100 (225~270 Kbps)
Detailed:
File Format: Format : MPEG-4 Format profile : Apple audio with iTunes info Codec ID : M4A Writing application : qaac 2.44, CoreAudioToolbox 7.9.9.3, AAC-LC Encoder, TVBR q100, Quality 96
Audio Format: Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Bit rate mode : Variable Bit rate : ~250 Kbps Maximum bit rate :~ 275 Kbps Channel(s) : 2 channels Channel positions : Front: L R Sampling rate : 44.1 KHz Compression mode : Lossy
Sources: ASL
Album info: Refer to http://www.animexmusic.net/sword-art-online.html