From the Oppo Digital page:
OPPO OPDV971H DVI DVD Player Firmware Release Notes
Version: OP971-2-0412 Release Date: April 13, 2005
This release of firmware addressed the following issues:
Fixed pixel cropping
Improved Y/C delays via DVI and component outputs
Corrected the mislabeled Sharpness/Contrast/Brightness control options. Added Saturation control as an option.
Corrected PAL 720p and 1080i output at 50Hz instead of 60Hz
This release added the following new features:
Supports multiple aspect ratios for DivX AVI files, including: 720x480, 720x576, 704x480 704x576, 352x240 and 352x288
Automatically closes the tray when pressing the POWER button on the player unit to power off
Enabled DTS decoding through analog connection in addition to digital connection
Zoom and Angle on-screen-displays are set to disappear after 5 seconds. The Pause is set to stay on screen to remind the user of the pause mode, based on the user input.
Adds more zoom options: 1.2x, 1.3x, 1.5x, 2.5x, and 3.5x, in addition to the original 2x, 3x, 4x, ½x, 1/3x & ¼x options. This allows letterbox to fill the screen with a non-anamorphic widescreen DVD.
Pressing the Backward key skips to the beginning of the chapter; pressing it again skips to the beginning of the previous chapter.
Adds Saturation control as an option.
Memorizes previous DVI setting in TV Auto mode in addition to in NTSC and Pal modes
This release changed the following default setting:
Changed the default setting of Subwoofer to 'off" on the Speaker Setup Page.