Sony has said that it plans to launch a new online music service with about 500,000 songs this spring, reports Reuters. The new service, dubbed “Connect,” will only work with Sony’s own portable music players initially, but the company says that software will be released later this year that will allow owners of other devices to use the service. In addition, Sony unveiled a new high-capacity version of its Mini-Disc and players (Hi-MD) that will allow users to store up to 45 hours of music on a 1GB disc.