Features Restricted By Manufacturers
All hardware manufacturers (especially DVD player/burner manufacturers) implement DVD CCA-mandated enforcement features on their products; some even go beyond that and implement additional features to restrict ripping, for example:
- RIPLOCK: many manufacturers put an artificial limit, or lock, on ripping speeds. Some of these drives have alternative 3rd-party firmware that have this removed to enable faster ripping. See the RPC-1 Firmware Site for example.
- RPC-1: there is a region code present on the drive, and it will be changed if a DVD from another region is read. Usually, there is no limit on the number of DVD region changes that can be made.
- RPC-2: some manufacturers put a limit on the number of times that a drive's region code setting can be changed (say, 5 times or less); after this number of changes, the drive becomes "locked" on the last region set and is unable to be changed. Some alternative 3rd-party firmware have this limit removed to enable unlimited region changes. It is also possible, even on an unmodified drive, to perform a brute-force attack on the DVD's encryption to overcome the region limitations.
- Bitsetting/Booktyping: this is a feature which makes DVD+Rs readable by older DVD players that can play DVD-ROMS only. Some manufacturers disable this feature on their drives. Again, some alternative 3rd-party firmware can enable this so that burned DVDs appear as DVD-ROMs and are playable by older DVD players.
Read more about this topic: DVD Copy Control Association
Famous quotes containing the words features and/or restricted:
“All visible objects, man, are but as pasteboard masks. But in each event—in the living act, the undoubted deed—there, some unknown but still reasoning thing puts forth the mouldings of its features from behind the unreasoning mask. If man will strike, strike through the mask!”
—Herman Melville (1819–1891)
“Love is like some fresh spring, first a stream and then a river, changing its aspect and its nature as it flows to plunge itself in some boundless ocean, where restricted natures only find monotony, but where great souls are engulfed in endless contemplation.”
—Honoré De Balzac (1799–1850)