PT (Private Tracker) download is actually a kind of BT download, for HD and other large data files, pt download is very suitable, after all, HD on the bandwidth requirements of the higher, few users can download a short period of time to complete a high-definition film. pt originated in the United States, the domestic most of the original source of high-definition film is the use of pt download HDBits The first source of most HD movies in China is HDBits website which uses PT to download. Nowadays, there are a lot of PT HD download sites in China, such as HDChina and ccfbist, as well as ourdvd, which specializes in DVD downloads.