As you see, there are a lot of options that you can play with. To somewhat limit ourselves we chose the four presets: “DVD”, “Good”, “Longer” and “Video CD” and recorded a few test videos using the tuner of Sapphire The Beast All In Wonder 9700 PRO as the video source.
The first example is a static image – a standard TV-tuning table:
You can see in the screenshots that the picture becomes “fuzzy” as we move from “DVD” to “Video CD”. Besides, the colors in the recording differ from the original in “Longer” and “Video CD” modes. Note also that the “Video CD” preset produces a smaller-resolution video – 352x288 against 768x576 – so we had to enlarge the screenshot to the size of the other three.
For a dynamic scene we chose a wrestling broadcast: there is enough action there :).
By default, the “DVD” preset doesn’t use de-interlacing and we can see those lines in the black and red shorts on the wrestling guys. The “Good” preset uses de-interlacing and makes the figures blurred. The “Longer” recording produced compression artifacts, while the referee’s black-and-white shirt has now red and blue colors on it. This shouldn’t happen ideally. The “Video CD” mode is the worst: you can’t discern anything at all. Actually, we haven’t hoped for anything more from a thing called “Video CD”.
It’s also a nice thing that there have been no dropped frames or other problems in any of the modes that might have been provoked by the computer hardware. During our tests we used Sapphire The Beast All In Wonder 9700 PRO in a rather average system according to today’s standards: Intel Pentium 4 Celeron 1700MHz, 256MB RAM, a SiS648 based mainboard, Seagate Barracuda ATA IV 40GB hard disk drive.