This is lcd, a C program that writes to an HD44780 LCD screen connected to your computer's parallel port. It originally came from http://centerclick.org/lcd/, but I (Anthony) modified it to work with my musicbox car mp3 player, which you can see at nodivisions.com/tech/systems/musicbox/. Download and extract it (tar -zxvf lcd*.tgz), and try running lcd. If it doesn't work, run make to re-build lcd. The most recent one is the one you should download. It's the bottom one if they're sorted by default.