If the DVD fails to load, the problem could be one of two things – the files in the DVD are not burned properly or they are not compatible with the player at all. Otherwise, the movie will play immediately. Once it had found all the compatible files, the interactive menu of the DVD will come out on the screen, if it is available. The DVD player will automatically scan the disc and read the files in it. Provided that the file stored on the disc is of the standard format recognizable by the player, all a user has to do is to pop the disc in. Playing DVD movies on a DVD player is generally a straightforward business. MP4 is developed to make multimedia applications on the internet faster and of better quality while M4V is specifically developed for Apple products such as the iPod, iPhone, and iTunes and is often copyrighted via Apple's FairPlay DRM copyright protection. It is also created by the Moving Picture Experts Group and its most common use today is to upload videos over the internet for streaming purposes. This video format is used to store both audio and video data, as well as stills and subtitles commonly seen on DVD discs. MP4 is the shortened name for MPEG-4 Part 14.
