08Additional information
Glossary
Analog audio | Direct representation of sound by an | ||||
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| electrical signal. See also Digital audio. |
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Aspect ratio | The width of a TV screen relative to its | ||||
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| height. Conventional TVs are 4:3; |
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| widescreen models are 16:9. |
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Digital audio | Indirect representation of sound using | ||||
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| numbers. See also Sampling frequency |
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| and Analog audio. |
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Dolby | A | ||||
Digital*1 | developed by Dolby Laboratories that | ||||
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| enables far more audio to be stored on a |
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| disc than PCM encoding. See also PCM |
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| (Pulse Code Modulation). |
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DRM | DRM (Digital Rights Management) copy | ||||
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| protection is a technology designed to |
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| prevent unauthorized copying by |
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| restricting playback, etc. of material on |
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| devices other the PC (or other WMA |
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| recording equipment) used to record it. |
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| For detailed information, please see the |
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| instruction manuals or help files that |
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| came with your PC (or other WMA |
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| recording equipment) and/or software. |
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DTS*2 | A | ||||
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| developed by Digital Theater Systems |
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| that enables far more audio to be stored |
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| on a disc than PCM encoding. See also |
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| PCM (Pulse Code Modulation). |
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EXIF | A file format developed by Fuji Photo | ||||
(Exchangeable | Film for digital still cameras. Digital | ||||
Image File) | cameras from various manufacturers | ||||
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| use this compressed file format which |
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| carries date, time and thumbnail |
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| information, as well as the picture data. |
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File | A tag added to the end of a filename to | ||||
extension | indicate the type of file. For example, | ||||
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| “.mp3” indicates an MP3 file. |
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ISO 9660 | International standard for the volume | ||||
format | and file structure of | ||||
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JPEG | A standard file format used for still | ||||
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| images. JPEG files are identified by the |
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| file extension “.jpg”. |
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MP3 | MP3 (MPEG1 audio layer 3) is a |
| compressed stereo audio file format. |
| Files are recognized by their file |
| extension “.mp3”. |
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MPEG audio | An audio format used on Video CDs and |
| some DVD discs. |
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PBC | A system of navigating a Video CD |
(PlayBack | through |
Control) | onto the disc. |
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PCM | Digital audio encoding system found on |
(Pulse Code | CDs. Good quality, but requires a lot of |
Modulation) | data compared to Dolby Digital, DTS |
| and MPEG encoded audio. See also |
| Digital audio. |
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Progressive | All the lines that make up a video |
scan video | picture are updated in one pass |
| (compared to interlace which takes two |
| passes to update the whole picture). |
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Regions | These associate |
| players with particular areas of the |
| world. See |
| page 38 for more information. |
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Sampling | The rate at which sound is measured to |
frequency | be turned into digital audio data. The |
| higher the rate, the better the sound |
| quality. CD is 44.1 kHz; DVD can be up |
| to 96 kHz. See also Digital audio. |
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WMA | WMA is short for Windows Media Audio |
| and refers to an audio compression |
| technology developed by Microsoft |
| Corporation. Files are recognized by |
| their file extension “.wma”. |
| Microsoft, Windows Media, and the |
| Windows logo are trademarks, or |
| registered trademarks of Microsoft |
| Corporation in the United States and/or |
| other countries. |
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*1 Manufactured under license from Dolby Laboratories. “Dolby” and the
*2 “DTS” and “DTS Digital Out” are registered trademarks of Digital Theater Systems, Inc.
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