The source of the strongest quality iNT compressed film in small high definition (BDRip, HDDVDRip) below 720p is BD, HDDVD original or REMUX, and important compression parameters such as Ref, subme, bframes, etc. Use the highest value. Because of the setting of high parameters, it takes more than 20 hours for each film to be pressed. It can be said that the file size (integer multiple of 1CD) comprehensively considers the factors such as duration, picture ratio and movie type to finally determine the bit rate of iNT video. Image resolution depends on video bit rate, image ratio and movie type. Considering the quality of the film source, the film source can be set reasonably and flexibly. Strict requirements for compression parameters make the image quality of iNT closer to the standard 720p under the full-screen display of 19 Pu ~22. According to the situation of the film source, in the case of high video bit rate, there should be 720p with low code to achieve better viewing effect in a small size.