Dreamcast

There were two Dreamcast label styles. One with smaller text and a barcode closer to the top of the label. (Style 1)

One with larger text and a slightly different size of barcode that was more vertically centered. (Style 2)

Both could be off center horizontally as the printing varied.

GameCube

The GameCube had two label styles. One with an underline on the last digit (the check digit) (Style1).

Another that has a dithering pattern on the last digit. (Style 2)