In January 2004, Sony announced the Hi-MD media storage format as a further development of the MiniDisc format. With its release in later 2004, came the ability to use newly developed, high-capacity 1 gigabyte Hi-MD discs, sporting the same dimensions as regular MiniDiscs. The Hi-MD format can be considered obsolete as the last recorder/player was...Found on http://en.wikipedia.org/wiki/Hi-MD
Hi-MD was developed by Sony to follow on from MiniDisc. It has the ability to store up to 45 hours of music using ATRAC compression, and can also store PC files such as Microsoft Word documents, PowerPoint presentations and JPEG images.
Found on http://www.sony.co.uk/glossary/ShowGlossary.action?site=odw_en_GB§ionty
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