mtv The .mtv filename extension is the second filename extension that refers to the proprietary video file format container AMV. AMV is a video container modified from the AVI video format and is primarily associated with video enabled Chinese portable MP4 players. Video stream files with either the .amv or .mtv filename extension can be played back on these devices. To maintain a relatively low cost, these MP4/MTV players rely on this video format and inexpensive hardware rather than more common but expensive proprietary video playback formats.
jpeg JPEG is abbreviated as the Joint Photographics Experts Group. It is a file extension that uses irreversible compression technology which helps in reducing the data size for storing data easier and advocates the seamless handling and transmission of content. A JPEG most commonly aids in storing digital images via "lossy compression" and includes images rendered by means of digital photography. Lossy compression does not let users restore the image file to its original quality after compression, once sized down. Some loss of the data stored in the image file occurs during the compression process. In simpler terms, when an image gets compressed, there's a reduction in its quality, thereby losing some of the graphical/visual data information; data reduction generates lower file sizes.