DVD recorder
A DVD recorder is used to record digital or analog video and film material (such as TV or camcorder recordings ) and the playback of DVD -Video movies and other image data. In principle, all manufacturers have adapted to these formats. Although there is peak party equipment already comes first for Panasonic standards.
Recording Formats
DVD recorders can record movies on DVD ± R and DVD ± RW save ( 'burn' ). For more expensive equipment in addition there is the possibility for storage on DVD-RAM or a built-in hard drive. Almost all equipment with hard drive allow simultaneous recording and playing ( timeshifting ), high-quality devices support this with the storage medium DVD, here, however, only when using DVD -RW ( VR mode) and DVD-RAM. For units with a hard drive, it is possible not to play copy-protected recordings from the HDD to a DVD, often from a DVD to the hard drive usually.
The footage can be digitally and a DV input ( Firewire) will be dubbed or analog via a RCA, SCART or S -Video jack. In addition, can be recorded as a VHS recorder TV programs. In the device, but only one tuner for analog antenna and cable reception is usually installed.
Recording technique
Unlike VHS recorders that store the footage on a magnetic tape in the VHS cassette, use DVD recorders as well as CD or DVD burner a laser holes upstream in one of the reflecting layer layer with an organic dye ( Dye) to burn the blank DVD discs. Through these holes can reflect light now - as opposed to the covered areas of the dye, which further reflects no or less light. When reading the DVD, a weaker laser beam is used. The DVD Recorder can convert this information into a television image and sound.
DVD recorder versus VHS recorder
Possible dubbing from HDD to DVD and vice versa often in a fraction of the playing time: with hard drive
On disk: Depending on the storage capacity of the internal hard disk
DVD ± RW ( Video mode): Only the last recorded title is deleted, however, can (and the vacant space for more recordings are used), individual titles at the beginning and in the middle not ( Hide as DVD ± R possible). Overall, however, After deleting and rewriting of individual titles or the entire DVD possible (about 1000 times ). Finalizing can usually only be undone by deleting the entire contents. After finalizing mostly on all DVD players playable.
DVD -RW ( VR mode): content changed as desired, thus created DVDs (even without finalizing) but playable only on VR -compatible players.
DVD - RAM: content changed as desired (about 100,000 times). Playback control on other DVD equipment is often not available.
Recording media
There are the formats DVD -R, DVD R, DVD- RW, DVD RW and DVD-RAM. Some DVD recorders can handle all formats, while others specialize in a particular. Most the DVD -RW prevailed. Additional functions such as " fast copy " or " Unfinalizing " are only available with certain formats with a few manufacturers.
Processing options
The actually existing processing options vary depending on the manufacturer / model of the recorder. The table indicates the possible in principle, processing options of the individual media formats. Functions that are available only in a few individual units are not considered.
Notes: 1: DVR - RW media can be formatted in two different modes. VR (Video Recording) mode offers convenient editing features, but can only be played on VR -compatible DVD players. In Video mode, the DVD can be played on almost all DVD players after finalizing. 2: The available recording time on DVD only extended if the last track is deleted.
Future
The DVD recorder will probably be replaced in the coming years of Blu -ray recorders that can take full advantage of HDTV technology and HD channels can record uncompressed. While Previous trademarks DVD devices can record HD broadcasts partially, but only compressed to save on DVD. This is the "HD " effect is lost. In 2009, Panasonic introduced at IFA before the first Blu- ray recorders for the European market, which is now also sold. It includes, as determined also upcoming devices from other companies, two DVB -S2 tuners, ensure the reception of modern HD material in high quality.