Most films that are downloaded at present,are in the DivX Format,and by using this formula of compression/decompression, a Movie can typically be compressed to about one tenth of its customary size and downloaded without noticeable loss of ability to a users Pc.
Here it can be stored on a Hard Drive or burnt onto a Cd/Dvd and viewed on a DivX compatible Media Player.
Due to the gigantic popularity of Movie Download networks, DivX has come to be a very favorite video compression technology (it was initially derived from Mpeg-4) ,and is doing for video what Mp3 did for music.
1gb
In practise DivX is used in the form of codec software,(a codec is a compressor/decompressor).
When a DivX encoded Movie is played out from its warehouse media (Dvd/Cd/Hard Drive),it is decompressed by the DivX software and relayed on to a DivX compatible Media Player such as Windows Media Player for Viewing.
For example,a Movie containing any Gigabytes of data can be compressed to any hundred Megabytes of data,and downloaded via the internet to a Pc in about 2 hours using a typical 512kb Dsl connection,this compares to about 20hrs for an uncompressed Movie!
For reference :
DivX and Movie Downloading - What, How, and Why?
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