Download movies that are ripped while they still in theatres. TELECINE (TC) / TELESYNC (TS) / CAM are the main formats. TC is usually excellent quality and the TS and CAM's are usually watchable for die-hards, with poor audio/video.
A Screener is sent (Pre-Retail) to rental stores, and various other places for promotional use. Usually letterbox , but without the extras that a DVD retail would contain. The ticker is not usually in the black bars, and will disrupt the viewing. If the ripper has any skill, a DVDscr should be very good. Usually transferred to SVCD or DivX/XviD.
Download DVD Rips of movies online. Links to copy's of the final released DVD Movie. If possible they are released PRE retail (weeks or even months before you go buy them retail) again, should be excellent quality. DVDrips are released in SVCD and DivX/XviD. & A Screener is sent (Pre-Retail) to rental stores, and various other places for promotional use
Download full DVD Movies in DVDR format (Usually .ISO or .IMG). Burn media to blank DVD and watch on any standard DVD Player. Sizes for a DVDR is usually 4.7 GB of region free data so make sure you have the storage and bandwidth to download the video.