A very interesting and useful tool of the DaTAVIEW software is QualityWeb. It is a dynamic viewing feature, that offers a clear and complete visual presentation of disc quality. In our example, all JC (jitter) POF, RADIAL1, RADIAL2, SVY, HFDO and PISum8 values are not graphically included within the inner area of the the red polygon and so show up as exceeding the quality limits: