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          Glossary  
            
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                  | Forced subtitles: | subtitles that disc player should always play in same language as active audio language. |  
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                  |  | Forced or 'Forced-only' subtitles are mostly used to translate text burnt in original movie. |  |  
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                  | ISO image file: | ISO file (extension .iso) is an image of every bit of a physical disc (CD, DVD, Blu-ray) stored in a unique file. ISO images are convenient for data and movie backup or for disc image library to share in local network from a file server. |  
                  |  | On Windows 8, just double-click an ISO file and the image is mounted as a virtual drive. |  
                  |  | On other Windows version (XP, Vista, 7), Microsoft offers a free utility: Virtual CD-ROM Control Panel. |  |  
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