Glossary of terms

Video formats, eg .mov, avi:
.MOV video file is a common multimedia format mainly used for saving movies and other video files, uses a proprietary compression algorithm developed by Apple computer, compatible with both Macintosh and Windows platforms.The format specifies a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, effects, or text (e.g. for subtitles).
AVI is a derivative of the Resource Interchange File Format (RIFF), which divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag. An AVI file takes the form of a single chunk in a RIFF formatted file, which is then subdivided into two mandatory "chunks" and one optional "chunk".
They are different layers of video transmission and storage, each with its own set of formats to choose from.
AVI=audio video interleave .mov macs version of avi .movie.

Streaming:
When an end user constantly receives multi media while being delivered by a streaming provider. The distinction is usually applied to media that are distributed over telecommunications networks, as most other delivery systems are either inherently streaming.

File compression:
data compression, source coding or bit-rate reduction is the process of encoding information using fewer bits than the original representation would use.Compression is useful because it helps reduce the consumption of expensive resources, such as hard disk space or transmission bandwidth.


Aspect Ratios 4:3 16:9:
The aspect ratio of an image is the ratio of the width of the image to its height, expressed as two numbers separated by a colon.In still camera photography, the most common aspect ratios are 4:3, 3:2, and more recently being found in consumer cameras 16:9.
4:3 standard Tv 16:9 is HD


Frame Rates:
Also known as frame frequency is the frequency rate at which an imaging device produces unique consecutive images called frames.