Video Quality Tests Page 2

Test Screens and MPEG-2/MPEG-1 Format

Test patterns are used to test the clarity and brightness of the created files. The test screens are compared with the images provided on the Pioneer disc, without any kind of conversion. A gradual range of Black to White bands are used, as well as dark and light areas on the screen.

In this page, MPEG-2 and MPEG-1 profiles were used (DVD and VCD). Clicking on the images will reveal high resolution images for better comparison.

DVD unconverted image
DVD High Quality Conversion
DVD Good Quality Conversion
DVD Standard Play Conversion
DVD Long Play Conversion
DVD Extended Play Conversion
VCD MPEG-1 Conversion

In this test screen you see different hues of black to white bands. Color level 1 should always be seen as pure black, while level 16 should always look like pure white colour. We were happy to see that colour levels were maintained after the conversion. As before, bightness was slightly reduced.

DVD unconverted image
DVD High Quality Conversion
DVD Good Quality Conversion
DVD Standard Play Conversion
DVD Long Play Conversion
DVD Extended Play Conversion
VCD MPEG-1 Conversion

Similar screen as before, only simpler. No colour levels are shown but the same results are observed. It should be noted that not all hardware based converters can reproduce colours the way ConvertX did. Very good performance.