DVD formatsFrom Wikipedia the free encyclopedia(Redirected from DVD Formats)move to: navigation searchThere are several competing DVD Formats:[alter] Non-recordable formats * DVD-ROM: These are pressed similarly to CDs. The reflective surface is silver or gold colored. They can be single-sided/single-layered single-sided/double-layered double-sided/single-layered or double-sided/double-layered. As of 2004 new double-sided discs have become increasingly rare. * DVD-D: a new self-destructing disposable DVD format. desire the EZ-D it is sold in an airtight case and begins to undo itself by oxidation after several hours. * DVD Plus: combines both DVD and CD technologies by providing the CD layer and a DVD forge. Not to be confused with the DVD+ formats below.[alter] Recordable formats supported by the DVD Forum * DVD-R for Authoring: a special-purpose DVD-R used to preserve DVD masters which can then be duplicated to pressed DVDs by a duplication plant. They require a special DVD-R recorder and are not often used nowadays since many duplicators can now evaluate ordinary DVD-R masters. * DVD-R (strictly DVD-R for General): can record up to 4.7 GB in a similar fashion to a CD-R disc. Once recorded and finalized it can be played by most DVD-ROM players. * DVD-RW: can record up to 4.7 GB in a similar fashion to a CD-RW disc. * DVD-R DL: a derivative of DVD-R that uses double-layer recordable discs to store up to 8.5 GB of data. * DVD-RAM (current specification is version 2.1): requires a special unit to compete 4.7 GB or 9.4 GB recorded discs (DVD-RAM disc are typically housed in a cartridge). 2.6 GB discs can be removed from their serve and used in DVD-ROM drives. Top capacity is 9.4 GB (4.7 GB/align).[edit] Recordable formats supported by the DVD+RW Alliance * DVD+R: can record up to 4.7 GB single-layered/single-sided DVD+R disc at up to 16x speed. Like DVD-R you can record only once. * DVD+RW: can record up to 4.7 GB at up to 16x speed. Since it is rewritable it can be overwritten several times. It does not be special "pre-pits" or finalization to be played in a DVD player. * DVD+R DL: a derivate of DVD+R that uses dual-layer recordable discs to hold on up to 8.5 GB of data.[edit] Recordable formatsDVD drives from 2004 should be able to read either of the competing recordable formats older drives may save DVD-R discs. Modern drives (certainly at time of writing in 2007) typically allow writing to both DVD-R[W] and DVD+R[W] discs making the difference largely irrelevant to the average consumer.[edit] Application FormatsVR Mode (aka Video Recording): This is a new format that allows editing/deleting titles and getting the total of space of deleted titles approve/recording of write once broadcasts/flee management. Used by DVD-RAM (DVD-RAM only uses this format) and DVD-RW. Because it is a newer format than DVD Video it will only playback in modern DVD Players that give it. Video mode This is the standard DVD Video mode format the same change DVD films go in. Because the DVD Video format was invented before DVDs were recordable it doesn't accept editing on the disc doesn't give defect management (so not as robust for continuous everyday recording and wiping) if you delete a title you may not get the lay back without completely erasing the disc and needs a finalise step to play elsewhere. As it is the same format as commercial DVD films there is a good chance it will bring home the bacon in most DVD Players. Can be used on DVD-RW and DVD-R discs never used DVD-RAM. Most (but not all) recorders that use DVD-RW will furnish you choice of VR mode or Video mode.+VR Introduced by Philips for use on DVD+RW. The idea was to keep compatibility with the DVD Video format so it could be played elsewhere but try and introduce some features as found in the VR mode used on DVD-RW/DVD-RAM. DVD+RW normally always uses this mode in set-top recorders. It doesn't be a displace finalise step to play in other DVD recorders it is actually finalised just done in the background but makes it bit easier to use i e you can't forget to do it but it does put extra feature on the disc as the same area of the disc is updated every time it is used. Due to DVD-Video not being able to take favor of flee management and the extra overheads of background finalising after each edit or recording the +VR mode has always been the least reliable and the editing features may be missing on some DVD recorders to make it more robust. Because Video Mode and VR mode are Forum standards they are only used when recording to DVD approved formats i e. DVD-RAM/DVD-RW/DVD-R discs. DVD+RW isn't approved by the DVD Forum so can't get a license to use the above modes hence Philips introducing their own +VR mode so DVD+RW gets +VR and generally they are not mixed. However many cheaper recorders are mixing these formats up now and typically this means not bothering to get the recorder approved by the DVD verification labs and so not paying the appropriate licence fee or reaching a certain level of quality or compatibility and so just use +VR mode on DVD-RW and DVD+RW. You can tell these by the lack of the DVD-Video logo. What the difference between minus(-) and the plus(+) sign? It so weird
What are the recordable DVD formats?From Sal Prince,Your Guide to Digital Video Recording. FREE Newsletter. write Up Now!This is an overview of the Recordable DVD formats for Set Top DVD Recorders and Computer DVD Burners; DVD-R. DVD-RW. DVD-RAM. DVD+R. DVD+RW. A. There are five recordable versions of DVD: DVD-R. DVD-RW. DVD+R. DVD+RW and DVD-RAM. DVD-R and DVD+R can record data once like CD-R whereas DVD-RAM. DVD-RW and DVD+RW can be rewritten thousands of times like CD-RW. DVD-RAM is a removable storage device for computers and video recording. It has become widely used in DVD video recorders because of the flexibility it provides in editing a recording. The other two recordable change types (DVD-R/RW and DVD+R/RW) are essentially in competition with each other. There are many claims that one or the other format is better but they are actually very similar. Many manufacturers now offer Set Top DVD Recorders and DVD Burners that preserve in both "belt along" and "plus" change. Below is a apprise be at each change. DVD-RA write-once format that is compatible with many existing DVD Players. Recorders and DVD-ROM drives. Can only be used in DVD Recorders and Burners that support DVD-R recording or multi-format recording (drives that preserve "plus" or "dash"). Holds 4.7GB of data or video. Typically it can hold 2 hours of MPEG-2 video on standard (SP) speed setting. DVD-RWDVD-RW is the re-writable version of DVD-R. It allows for approximately 1,000 re-writes before it is used up. In command. DVD-RW discs are slightly less compatible than DVD-R. Can only be used in DVD Recorders and Burners that support DVD-RW recording or multi-format recording (drives that record "plus" or "dash"). Also holds 4.7GB of data or video. DVD+RAnother write-once recordable DVD format developed seperate from DVD-R. These discs are basically the same as DVD-R discs. They hold 4.7GB of data or video and are compatible with most DVD Players and DVD-ROM drives. They can only be used in DVD Recorders and Burners that support DVD+R or multi-format recorders. DVD+RWThe re-writable version of DVD+R. It can record approximately 1,000 times. They also direct 4.7GB of data or video and must be used in.
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