RealVideo is a suite of proprietary video compression formats developed by RealNetworks – the specific format changes with the version. It was first released in 1997 and as of 2008^[update] is at version 10. RealVideo is supported on many platforms, including Windows, Mac, Linux, Solaris, and several mobile phones.

RealVideo is usually paired with RealAudio and packaged in a RealMedia (.rm) container. RealMedia is suitable for use as a streaming media format, that is one which is viewed while it is being sent over the network. Streaming video can be used to watch live television, since it does not require downloading the entire video in advance.

The first version of RealVideo was announced in 1997 and was based on the H.263 format. At the time, RealNetworks issued a press release saying they had licensed Iterated Systems' ClearVideo technology and were including it as the RealVideo Fractal Codec. However, support for ClearVideo quietly disappeared in the next version of RealVideo.

RealVideo continued to use H.263 until RealVideo 8, when the company switched to a proprietary video format. RealVideo codecs are identified by four-character codes. RV10 and RV20 are the H.263-based codecs. RV30 and RV40 are RealNetworks' proprietary codecs. These identifiers have been the source of some confusion, as people may assume that RV10 is RealVideo version 10, when it is actually the first version of RealVideo. RealVideo 10 uses RV40.

Paul William Walker IV (born September 12, 1973) is an American actor with Albanian ancestry. He became well known in 1999 after his role in the hit film Varsity Blues. He is also known for starring in the surprise summer hit The Fast and the Furious. His other films include Joy Ride, Running Scared, Into the Blue and Eight Below. The films he has starred in have grossed more than $1.7 billion. He also appears in the National Geographic Channel series Expedition Great White..

Walker was born in Glendale, California and raised in the San Fernando Valley area of Los Angeles County, the son of Cheryl, a fashion model, and Paul Walker III, a sewer contractor. His paternal grandfather was a professional boxer. He is the oldest of five, having two brothers and two sisters. Walker was raised as a member of the Church of Jesus Christ of Latter-day Saints, or Mormon, church. He attended and graduated from Village Christian School. After high school, he attended several community colleges where he majored in marine biology.

Aron Lee Ralston (born October 27, 1975) is an American outdoorsman, engineer and motivational speaker.

He is widely known for having survived a canyoneering accident in south-eastern Utah in 2003, during which he was forced to amputate his own right arm with a dull multi-tool in order to free himself from a dislodged boulder, which had trapped him there for five days and seven hours. Even after he had escaped, he still had to climb down a 65 foot (around 20m) sheer cliff face to reach safety.

The incident is documented in Ralston's autobiography Between a Rock and a Hard Place, and is the subject of the film 127 Hours.

Ralston was born on October 27, 1975, in Indianapolis, but he and his family moved to Denver when he was age 11. He is a graduate of Cherry Creek High School in Greenwood Village, Colorado. He received his college degree from Carnegie Mellon University in Pittsburgh, finishing with degrees in mechanical engineering and French, with a minor in piano. At Carnegie Mellon, he served as a resident assistant, studied abroad, and was an active intramural sports participant. He left his job as a mechanical engineer with Intel in Phoenix, Arizona, in 2002 in order to pursue a life of climbing mountains. He had the goal of climbing all of Colorado's "fourteeners" — peaks over 14,000 ft high, of which there are 53 or 54, depending upon the definition parameters — solo and during winter (a feat that had never been recorded). He has subsequently achieved this goal.

Michael Jonathon Slater (born 21 February 1970) is a former Australian cricketer who played in 74 Tests and 42 ODIs for the Australian cricket team from 1993 to 2001. He subsequently became a cricket commentator.

The son of Peter and Carole, Slater was born in the New South Wales rural city Wagga Wagga on 21 February 1970 after his parents and two elder siblings (Julian and Tracey) had emigrated from the north-eastern coast of England in 1966. They originally migrated to Launceston, Tasmania, Australia by boat, after deciding against moving to Canada. In Launceston, Slater's father taught agriculture and science at high school, as he had done since graduating from college. After three years in Launceston, the Slaters moved to Wagga Wagga, and Peter became a lecturer in agriculture at what is now known as the Charles Sturt University. Slater lived in Wagga Wagga for his entire childhood, eventually leaving with only fond memories. He later wrote: "Wagga Wagga was a great place to grow up, for many reasons. It was a good size — it had a population of around 50,000 when we moved there — and it was in the country, with a great Australian climate. My family was always involved in sport, so from an early age it just seemed natural for me to play any game that was on offer."