Comparison of the files ripped from DVD & DVD


DVD originally represents the initials of Digital Video Disc, because it is mainly focused on images when first launched and promoted by most vendors. At that time, there is not much strict requirement for high capacity storage media in computer industry. Later on, the orientation of the product changed. When the specifications were formally established in 1995, it is redefined as Digital Versatile Disc. The former name of Digital Video Disc still continues to be used by a lot of people. As a result, generally people only call it DVD. DVD is a video storage media format, which is usually used to play standard TV-definition movies, high-quality music and for use of mass data storage. DVD looks much like CD in terms of outward appearance, with their diameter both about 120 mm. DVD has been popular for almost a decade. However in recent years, it is gradually being replaced by a more practical media format, DVD Rip.

DVD Rip is compressed from a retail DVD. It rips the video and audio files from DVD with DivX,Xvid or X264 encoder. The quality of video and audio is highly comparable to the original DVD file. A common DVD-5 disc is nearly 5 GB in size. However, a CDROM of DVD Rip is only about 700 MB. Because DVD Rip is compressed through advanced encoding technology, there must be a specific decoding program to play. For both software and hardware to implement this type of decoder performance, there must be a high performance chip. Usually DVD does not possess such chips. DVD Rip is the advanced edition of DVD. It is generally used for large-scale TV series, while DVD is more suitable for movies and such. The similarity of the two is that they have a large amount of codes, high-definition video, and large volume. The different aspect is that when watching a DVD Rip, the player needs to decode solely of itself. So the files in format of DVD Rip are more likely to be a bit bigger than other video formats. But it has the quality closest to DVD files.