| − | In 2004, HD (High Density) MiniDiscs with 1GB storage capacity were developed not only for audio purposes but to store data from a computer. Similar to USB drives in terms of portability and compatibility, they are often used to make back up copies of important data for security purposes. | + | In 2004, HD (High Density) MiniDiscs with 1GB storage capacity were developed not only for audio purposes but to store data from a computer. Similar to [[USB]] drives in terms of portability and compatibility, they are often used to make back up copies of important data for security purposes. |