Colour banding problems on early PlayStation models.

There was a colour banding problem on some of the first PlayStation consoles. This can be observed right at the beginning of Tomb Raider on the snow. We can clearly see several rows of colours each lighter than the previous one instead of a colour gradient. Both the retail SCPH-1002 and the debugging unit DTLH-1102 are affected by this graphic glitch. It was fixed on later models. To make a comparison we can see the same game running on a PSOne SCPH-102 where the snow is properly displayed. Compare the dif