Up to 45 hours of music on just one Hi-MD disc (at 48kbps recording) / Hi-MD discs can also be used to store documents, PC files, and images / Mini Disc

Hi-MD discs have all the benefits of standard MiniDiscs; they're small, re-recordable and incredibly durable, but now you can store up 45 hours of Music on just one disc. A MiniDisc can easily fit in a shirt pocket, and with the incredible Storage capacity of each disc, your entire music library becomes portable. Plus, you can also store documents, PC files, and images on your Hi-MD discs.