Wikipedia
SonicStage is the name for Sony software that is used for managing portable devices when they are plugged into a computer running Microsoft Windows. It comprises a music player and library manager, similar to iTunes, Windows Media Player and RealPlayer. It is used to manage the library of ATRAC OMG/OMA and MP3 recordings on a PC. It was first used in VAIO PCs put on the Japanese market in October 2001, and superseded OpenMG Jukebox. Version 2 was found on 2004 model products, and Version 3 on 2005 model products (Sony introduced native MP3 support on its music players in 2005).
The Sony Connect service was formerly used to purchase recordings online, and could be accessed from within the SonicStage program. However, Sony announced that on the 31 March 2008, its CONNECT download site would be going offline, therefore affecting SonicStage users.
However, in late 2008, Sony launched a new online music store called " Bandit.fm" on a trial basis in Australia and New Zealand. Bandit.fm has been considerably more successful and although unconfirmed, it was widely expected that Sony would launch Bandit.fm globally in the medium-term future, pending the results of the Australian/ New Zealand trial, however, Sony never did this. Japan exclusively uses the mora service.