Aunque en ingles os puede aclarar bastante las difencias entre el 971 y el 970, la diferencia fundamental al menos para mi es el chip desentralazador/ escalador: DCDi by Faroudja :amor para el 971 y "otro", sin especificar para el 970 :?
Extraido de la pagina FREQUENTLY ASKED QUESTIONS de Oppodigital:
General Questions
Q: What are the main differences between the OPPO DV-970HD and OPDV971H DVD players?
A: While both the OPPO DV-970HD and OPDV971H are excellent DVD players with high definition up-conversion, the OPDV971H emphasizes more on the video performance and the DV-970HD emphasizes more on the overall performance and value. The main differences between the two models are:
The OPDV971H features video processing with "DCDi by Faroudja" technology and video chipset by Genesis/Faroudja; the DV-970HD uses a different chipset and technology for video de-interlacing and up-conversion. While both player produce excellent picture quality and the difference is subtle, the "DCDi by Faroudja" technology is able to handle some tricky video contents. On very large TV or projector screens, the difference could be noticed by experts or videophiles. When benchmarked with contents designed to test video performance, the OPDV971H will score higher than the DV-970HD.
The OPDV971H has a DVI output for digital video; the DV-970HD has an HDMI output for digital video and audio.
The DV-970HD supports Super Audio CD (SACD) in addition to DVD-Video, DVD-Audio, Audio CD etc. supported by both players.
The DV-970HD has a flash memory card reader and USB interface while the OPDV971H does not.
The OPDV971H front panel has a brushed aluminum finish; the DV-970HD front panel has a reflective mirror finish.
Saludos.