Sony NW-E507 - MP3 Player Review | Trusted Reviews
SonicStage CP 4.3 - Télécharger pour PC Gratuit
ソニー、MP3転送/CD作成に対応した「SonicStage 3.0」
Using SonicStage software on Windows 8.1 with your Sony Walkman NetMD player - YouTube
So apparently sonic stage can handle up to 96khz 24bit for wav files. But I don't know if the Atrac3 plus encoder keeps the 24bit dynamic range or reduces it down to