Clarifications

1) " Dvd" -- As it applies to Dvd Cd R DVD (also known as digital versatile disc or digital video disc) is an optical disc storage media format that isused for playback of movies with high video and sound quality and for storing data. Dvd sare similar in appearance to compact discs. Two Dvt s with different bottom sides. Contents 1 History 2 Technical information 3 Dve -Video 3.1 Security 3.2 Region codes 4 Dcd -Audio 5 Dvf types 6 Dv players and recorders 7 Competitors and successors 8 See also 9 Bibliography 10 External links History During the early 1990s there were two high density optical storage standards indevelopment; one was the Multimedia Compact Disc (MMCD), backed by Philips and Sony, and the other was the Super Disc (SD), supported by Toshiba, Time-Warner, Matsushita Electric, Hitachi, Mitsubishi Electric, Pioneer, Thomson and JVC. IBM led an effort to unite the various companies behind a single standard, anticipating a repeat ofthe costly format war between VHS and Betamax in the 1980s. The result was the Ddv format, announced in September of 1995. The official vd specification was released inVersion 1.0 in September, 1996. It ismaintained by the Dvx Forum, formerly the Dvc Consortium, consisting of the tenfounding companies and over 220 additional members. The first Dd players and discs were available in November of 1996 in Japan and in March of 1997 in the UnitedStates. By the northern spring of 1999, the price of a Dvf player had dropped below the $300 mark. At that point Wal-Mart began to offer Dv players for sale in its stores. When Wal-Mart began selling Dvc s in stores, Dvt s onlyrepresented a small part of their video inventory; VHS tapes of movies made up the remainder. As of 2004, the situation is now reversed. Most retail stores mainly offer Dv s for sale, and VHS copies of movies make up a ... 2) " Cd" -- As it applies to Dvd Cd R CD or cd may stand for: a compact disc a certificate of deposit civil defense the symbol for the chemicalelement cadmium (Cd) the abbreviated form of the SI unit of light intensity, candela an initialism for cash dispenser (at least used in Japan ) a UNIX and DOS command, see chdir an initialism for České dráhy - English: CzechRailways a designation of a 1960s Panhard race car designed by Charles Deutsch a cluster of differentiation , (e.g.CD4 or d 8 lymphocytes ). congressional district CorpsDiplomatique the ISO 3166-1 alpha-2 country code for the Democratic Republic of the Congo , and its ccTLD .cd circular dichroism a crossdresser Chalmers Datenforung , the computer club of the Chalmers University ofTechnology the LPMud Driver drag coefficient the Centrumsdemokraterne, the Centre Democrats in Denmark. Looking for CfD instead? Try Wikimedia : Categories for deletion Cc ... 3) " R" -- As it applies to Dvd Cd R Latin alphabet Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq r Ss Tt Uu Vv Ww Xx Yy Zz R is the eighteenth letter of the Latin alphabet. Semitic êš (the head) developed into Greek Ρω (Rô). The sound value /r/ however was maintained in Greek aswell as Etruscan and Latin. The finishing stroke was added to the Greek ho to distinguish it from a later form of the Greek Pi,at a time when there were only capital letters in Latin. It isusually one of the liquid consonants, though there are many ways it is pronounced inEuropean languages. In typography, there was once a form called the half , which was lost before the long s was. Romeo epresents the letter R in the NATOphonetic alphabet. Meanings for In biochemistry, is the symbol for arginine In calendars, is often used as an abbreviation for Thursday instead of T, to avoid confusion with Tuesday In chemistry, R denotes the molar gas constant In organic chemistry, R is the symbol for the hydrocarbon chain In chess, R is a notation symbol for the ook piece In the GB colour model, standsfor the colour R ed In commerce, R with an enclosing circle, ®, denotes a egistered trademark In computing, R is the name of a statistical programming language based on S ; see programminglanguage r is sometimes used as the symbol for the R une 16-bit unit In driving a motorvehicle, designates the everse gear of a transmission In electrical engineering, is often the variable for electrical R esistance In film, R is a R ating given for films given byfilm classification boards (such as the Motion Picture Association of America in the US ); see (rating) Common terms in this field are: Duro Last Roofing, Durham Golf, Durango Mountain, Durango Hotel, Durable Power Of Attorney Florida, Ducane Gas Grill, Dryer Heating Element, Drum Machines, Drug Screenings, Drawing Pencils, Drawer Knobs, Drake San Francisco, Downloadable Ring Tones, Dow Silicone, Dolby Digital Surround, Dogs Clicker Training, Dog Tapeworms, Dog Breed Akita, Document Image, Doctors In Dallas Some information comes from Wikipedia. Wikipedia's GNU Free Documentation License allows for this.