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Sony RDR-GX7 Supplementary Manual
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Sony RDR-GX7 Supplementary Manual

Sony RDR-GX7 Supplementary Manual

Sony rdr-gx7: supplementary guide
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What's DVD Recording ?

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Summary of Contents for Sony RDR-GX7

  • Page 1 What's DVD Recording ?

  • Page 2: Physical Format

    Since its introduction in 1996, DVD-Video fast became the new world standard for movie and concert video enjoyment, with extremely high quality picture and sound reproduction. Not only have DVD players become commonplace, DVD drives are increasingly employed in computers, game devices and other electronic equipment.
  • Page 3 Writable DVD has these superior features. Storage and playback of digitally recorded video and audio with superior image and sound quality. Up to 4.7 GB of data can be recorded on a CD-sized 12 cm optical disc. Quick random access to image and sound without the need for cueing or rewinding. Non-contact optical reading system is impervious to wear during repeated playback, and is highly resistant to the effects of dirt and scratches, for superior storage characteristics.

  • Page 4: Video Recording

    Dolby Digital and other formats. This assures extremely high quality video and audio recording, while also ensuring playback compatibility on conventional DVD players. How MPEG-2 video compression works Compression in field unites. (The image is digitalized in field units and compressed.)
  • Page 5 Common features of Compact optical disc with large data capacity. writable DVD A DVD holds seven times as much data as a CD. One side of a DVD can hold up to 4.7 GB, about seven times a CD holds. This high data capacity enables longer recording of video and audio.
  • Page 6 Common features of Versatile recording and playback with high reliability. writable DVD Random access for versatile operation Confirm recorded content using the menu function to quickly access and play any desired sequence. No need to cue to find blank disc space. Just press the REC button to start recording on the remaining blank area.
  • Page 7 Differences in Physical format writable DVD Write-once DVDs can only be recorded once, like photographic film. Rewritable DVDs can be recorded and re-recorded many times, like tape. Each type has its own advantages, and is chosen depending upon the type of use. Read-only DVD-ROM Organic dye...
  • Page 8 Differences in How Write-once and Rewritable DVDs work. writable DVD During DVD recording, a powerful laser beam, stronger than that used for playback, heats up the recording material, changing it to represent the data. Write-once DVDs use chemical change, while rewritableDVDs make use of phase change. In write-once recording, the organic dye is chemically changed.
  • Page 9 Differences in Different recording methods are used. Logical format writable DVD DVD recording methods can basically be divided into two categories, those which place emphasis on playback equipment compatibility, and those which enable more operation functions. Here, these are referred to as the DVD compatible type and the Video Recording (VR) type. The DVD compatible type is for recording DVDs which can be played on DVD-Video players, while the VR type is for taking advantage of numerous operation functions, playing DVDs primarily with the equipment on which they were recorded.
  • Page 10 Differences in Logical format-2 writable DVD The VR type is used for DVD-RW and DVD-RAM. The discs can only be played on compatible players, but they feature quite a number of unique editing functions. Recorded video scenes can be edited on the disc itself. Editing functions such as erasing scenes in an original video recording can be performed on the disc itself.

  • Page 11: Dvd Player

    Types of Discs and Compatible DVD Players. There are cases where a recorded DVD disc can not be played back on certain DVD players due to differences in disc type and recording format. Compatibility by disc type, recording format and type of player is indicated below.
  • Page 12 Writable DVD for easier enjoyment. Since recorded DVDs can be played on many DVD players, car DVD systems, PCs and game equipments around the world, they can be enjoyed in many ways. A number of possibilities enable to create a new style of communication through DVDs.

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