MPEG

More Knowledge about MPEG

The 'Moving Picture Experts Group' (MPEG) is a working group of experts that was formed by ISO and IEC to set standards for audio and video compression and transmission. It was established in 1988 and its first meeting was in May 1988 in Ottawa, Canada. As of late 2005, MPEG has grown to include approximately 350 members per meeting from various industries, universities, and research institutions. MPEG's official designation is ISO/IEC JTC1/SC29 WG11 - Coding of moving pictures and audio (ISO/IEC Joint Technical Committee 1, Subcommittee 29, Working Group 11).

The MPEG standards consist of different Parts. Each part covers a certain aspect of the whole specification. The standards also specify Profiles and Levels. Profiles are intended to define a set of tools that are available, and Levels define the range of appropriate values for the properties associated with them. Some of the approved MPEG standards were revised by later amendments and/or new editions. MPEG has standardized the following compression formats and ancillary standards:

MPEG-1: Audio and video compression format developed by MPEG group back in 1993. Official description: Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s. MPEG-1 is the video format that has had some extremely popular spin-offs and sideproducts, most notably MP3 and VideoCD.

MPEG-2: A video standard developed by MPEG group. MPEG-2 is not a successor for MPEG-1, but an addition instead -- both of these formats have their own purposes in life; MPEG-1 is meant for medium-bandwidth usage and MPEG-2 is meant for high-bandwidth/broadband usage. Most commonly MPEG-2 is used in digital TVs, DVD-Videos and in SVCDs. Some Blu-ray films have MPEG-2 transfers but not many as there are better lossy compression formats such as VC-1 or MPEG-4 AVC.

MPEG-3: A proposed variant of the MPEG video and audio compression algorithm and file format. MPEG-3 was intended as an extension of MPEG-2 to cater for HDTV but was eventually merged into MPEG-2. MPEG-3 should not be confused with MP3 which is MPEG-1 layer 3 popularly used for audio encoding.

MPEG-4: MPEG-4 is one of the latest (audio and video) compression method standardized by MPEG group, designed specially for low-bandwidth (less than 1.5MBit/sec bitrate) video/audio encoding purposes. Probably the best-known MPEG-4 video encoders are called DivX and XviD, which both are nowadays fully standard-compliant MPEG-4 encoders.

How to Convert DVD to MPEG?

Believing it or not, best movie resources are still from your DVD collections. Besides watching movies on TV with DVD player, sometimes you may also want to enjoy the films with iPod, iPad, PSP, or PC players; sometimes you may want to back up a special disc; sometimes you want to upload DVD disc content to YouTube but just find only FLV files are accepted...At this moment, you do need to rip DVD to video in common formats. On the other hand, DVD discs takes some space while converting DVD to videos to store the movies on PC will save your space. Needless to say, backing up DVD disc and making DVD copy are necessary to ensure never losing those important data.

The following guide will tell you exactly how to rip a DVD disc and convert DVD movies to video in desired format, like ripping DVD to MPEG/MP4/AVI, step by step.

First, it is necessary to install the software: DVD Converter;
Secondly, you should have a DVD disc in your driver or DVD folder in your PC;
Last, make sure your PC has enough free space in a hard disk for saving temporary files.

Step 1: Add DVD Movie to DVD Converter

Launch DVD Converter. Click button “Open DVD” to open a DVD disc (DVD-5 or DVD-9) in your driver or a DVD folder (containing VOB files) in your PC.

Step 2: Specify DVD to Video/Audio Conversion

After DVD titles are all listed in the program, you may go to General Settings or Advanced Settings panel to specify your conversion. Click the drop down arrow under "Target profile" and select a profile from the list. It lists kinds of DVD to video/audio conversion pre-sets, which are specified different dimension, bit rate, codec, file size and so on.

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Step 3: Rip DVD

Click button "Rip DVD" on the top of the tool bar to start DVD to video/audio conversion.

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