mgadvd is a Matrox G200/Zoran 36700 hardware MPEG decoder driver for Linux. It allows you to play MPEG-1, MPEG-2, and DVD streams through the Zoran 36700 Vaddis III decoder (connected to the G200) with very low CPU usage. Supported DVD audio formats are AC3 (Dolby Digital) and PCM. Included is a player app called mzplay that plays DVD directly from the disc as well as MPEG-1 and MPEG-2 video and audio (Layer II only) files.
This Samsung ML-85G printer driver can print at the full resolution of 600x600 dpi, and at the maximum speed (about two times faster than the driver supplied by the manufacturer under Windows). It needs Ghostscript to convert your PostScript files into PBM images, piping the output directly to the driver. The driver runs in user space, but calls iopl(), so it should be set suid root to execute transparently.