Lossless: this form of file compression is almost entirely opposite to the lossy form. the lossless file compression basically rewrites the original data in a more efficient way. however in doing this you sacrifice no quality loss for having a larger file type. a file compressed with lossy could be one tenth of the original, while lossless is unlikely to produce a file smaller than half of the original size.
Short Film: film trailers are now available via virgin movies, the promo trailer for the new Sin City 2 (http://www.virginmedia.com/movies/trailers-clips/sin-city-2-a-dame-to-kill-for-trailer/3321745689001/?filter=trailers#!/sin-city-2-a-dame-to-kill-for-trailer/3321745689001) is available to watch on the virgin movies website. however the video is a flash file therefore there is no way to change the resolution. The video is displayed in a lossless flash video format and is displayed the same way on mobile devices 640p - 480p.
Games: mainstream games are now available to purchase online through Steam http://store.steampowered.com/app/243470/. the trailer for the game Watch Dogs is in a Flash video format displayed in a 640p - 480p resolution and 16:9 aspect ratio this can be downscaled so it can be viewed on mobile devices. the game itself on pc is displayed in lossless MP4. format allowing the viewer to watch the video in high quality.
Promo: this is the Promo for the FreeFly cinema company http://www.freeflycinema.com/freeflyReel.html this promo clip is displayed in a 16:9, 640p - 480p lossless MP4. format but you cannot change the resolution however you can view this on vimeo which allows the capability to view the clip in Full HD
MOV - a MOV file is simply a movie file. this file type is commonly used on apple Macintosh devices however anyone can view this file type if they have the Quicktime program.
MPG - is another file type used for movies, but more commonly used for transferring movies over the internet. it is a lossless file compression type. the MPG format is also given to many of the VCR videos that are converted to downloadable movies, e.g. if you had a VCR and converted it into a downloadable video you could convert it into an MPG format.
MP4 - (aka MPEG-4) this file format is yet another file used for compressing video, audio, graphics and text. this format also allows for advanced content such as user interactivity and 3D graphics. this format is also a common file type which is shared across the internet. it is also compressed in lossless making it popular to share across the internet because it maintains its quality.
AVI - (Audio video interleave) is Microsoft's version of the MOV file used by Apple, this format of movie file is less common than apples mov format because it is unreliable in terms of copying specific files over like MP3 files and various other vbr data.
WMV- is a compressed video format designed originally for use on the internet streaming applications. this format also caters for various other specific formats like WMV Screen and WMV Image. a new version of WMV(WMV 9) has the capability to support formats such as HD DVD and Blue-ray Disc. WMV 9 can now also be played on numerous media players like VLC, KMPlayer, MPlayer and with Flip4mac software you are able to play WMV files on Quicktime.
FLV- is a flash video format designed for adobe systems. FLV is the standard video forma used by nearly every video on the internet including you-tube google video and various other websites. however other websites like Apple iTunes and vimeo do not support flash video as they prefer the MP4 format because of its high quality support, this is the same for mobile devices as they do not support the adobe flash content.
SWF - (Small Web Format) is a file extension for a shockwave file format designed by macromedia and now owned by adobe. SWF can contain video, vector based animations, sound and are designed to be transferred across the internet. SWF can be viewed online using the flash player plug in.
3GP - is a file format which stores video streams as MPEG-4 files and also audio as AMR files. 3GP is a multimedia container format created by the third generation partnership project for 3G multi media services. it is used on 3G phones but can also be used on 2G and 4G phones.
ASF - is a file format designed for storing and playing video streams and transmitting the over the internet. this format supports scalable media such as video and audio. this format also allows you to stream multi channel audio or multiple bit rate video suitable for transferring over different bandwidths.
file sizes:
Resolution - is judged by pixels in an image, depending on how many pixels there are in an image you can have a blurry image or a crisp image by increasing or decreasing the amount of pixels in the image.
Data Rate - is the rate at which information is being transferred. it is expressed in the amount of information per unit of time e.g. a common form of data rate describing the speed of a hard drive is Megabytes/second. once you calculate the data rate at which your hard drive is transferring information you can the begin to work out how much space you will need for that file.
Frame Rate - the number of pictures taken per second by the camera determines the frame rate of the motion picture. Frame Rate describes both the speed of recording and the seed of playback eg. The more frames recorded per second, the more accurately motion is documented onto the recording medium.
Keyframe Rate - Keyframes are the markers in video production for animation which defines the start and finish point of the animation. in-between the start and finish of this you have all of the other keyframes which are virtual frames and are not recorded like a camera would do, so the computer makes them up from copying the frame rate at which your working at.
Aspect Ratio:
4:3 - was the common ratio used for TV, computer monitors and is still used by Apples iPad. aspect ratio is the term used for the hight and width of a screen in this case the screen would be 4 in hight and 3 in width making the screen a square shape.
16:9 - is now used more commonly throughout household TVs as this ratio provides a more widescreen view.
Netflix: Short films are accessible now through media such as Netflix, the trailer for the award winning show "Breaking Bad" available for free with Netflix's free one month trial, the trailer was also internationally broadcast on HBO. all of the TV shows and films on Netflix were originally streamed in WMV3 and WMA but now Netflix utilises Microsofts SilverLight technology and stream their movies and shows in Vc-1 advanced profile encoding with play ready DRM (Digital Rights Management). the movies and shows can be viewed in full HD 1920p -1080p however they can also be viewed in standard definition 640p-480p.
DVD: DVD's are a popular way to buy and watch films at home. the vast majority of DVD's use the VOB format and are viewed at 720p-480p
DIVX: is a company which helps their consumers convert any file format to any device or platform. Divx also create distribute and license digital video technologies for home and on the go entertainment systems. with Divx Plus streaming, you can view videos at
DVD: DVD's are a popular way to buy and watch films at home. the vast majority of DVD's use the VOB format and are viewed at 720p-480p
DIVX: is a company which helps their consumers convert any file format to any device or platform. Divx also create distribute and license digital video technologies for home and on the go entertainment systems. with Divx Plus streaming, you can view videos at
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