What is a .jpg, gif, mpg, mp3: These are commonly used extensions so that the computer will know what program can read, display, and or play the file. A file with the extensions of .jpg, .gif and .bmp will contain pictures. A file with the extension of mpg will contain a movie, possibly with or without sound. A file with the extension of .mp3 will contain an audio file. This can be a sound file or one containing a song or entire album of songs. |