Homebrew developer Cid2Mizard released a very interesting early version of a homebrew application for the Nintendo DS. Videotheque (translated as video library) DS version 0.1 allows users to access data files of movies then display them.

Users can browse files listed in the video.txt file then view a corresponding image stored in the Jaquettes folder. It's fairly easy to use, so if you want to keep track of movies you have, all you need to do is add an entry to the text file then place an image in the folder.