How to Compress MPEG2 File

Level of difficulty: Intermediate

The MPEG2 file format is a lossy compression method for audio and video. It is often used for broadcasting TV signals. Videos distributed via DVDs also use this same file format. The format is often larger than other file formats. Users may wish to compress an MPEG2 file so that it can take up less space.

Materials Needed:
- Computer
- multimedia file converter
Step 1
Choose a media converter program. The easiest way to compress an MPEG2 file is via an application. Most of these are compatible with a number of formats, allowing users to perform a number of different tasks. The software can use different compression methods and codecs to convert media files from one format to another.
Step 2
Launch the program. Open the program via a shortcut or the programs list in the Start Menu. Check if it supports the MPEG2 format. If it does not, this can usually be resolved by downloading and installing a codec.
Step 3
Open the MPEG2 file. You can select it from an Add or Open File option on the program interface or via dragging it into the window. If the file is large, it may take some time for it to be loaded onto the application.
Step 4
Choose the format to convert the file to. Depending on the converter application, the file can be converted to a number of multimedia file formats. Some common video formats are AVI and MP4. The conversion will often involve the decompression and recompression of the file.
Step 5
Set the file name and location for the converted file. Some applications allow users to overwrite the source file. It is advisable for the new file to be saved separately. This will allow the user to keep the source if the compression is not processed properly.
Step 6
Choose final settings. Conversion software may allow users to set the codec used to compress the file. Different rates of compression may be available so that the video file will retain a significant amount of quality. The processing of the audio may also be changed to give the best results.
Step 7
Convert the file. The application may allow users to preview the video file as the conversion happens. Others will simply show a status bar for the process. Some software can alert the user when the action is completed.
Step 8
View the converted file using a compatible media player. Make sure both video and audio are playing properly and in-sync. Some problems with conversion alter the relationship between the two.

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