Maybe you could post a scan of it, I am not sure what you mean? When you say Inner Ring, do you mean where the stacking rings normally appear or just before that at the edge of the dye? The reason I ask is no disks that use stacking rings metalise to the center (because the silver becomes brittle and cracks/breaks where the stacking rings are). There should not be anything beige where the silver is, the silver is for reflection and is very important.
If you could post a scan we could have a look and have some sort of idea what you are talking about. When you say beige/off white, could you possibly mean frosty? If they are frosty this would indicate a reaction between the bonding substance and the plastics the disk is made from. This happens when the disks are not stuck together properly. Other tell tale signs of a bad disk are airbubbles inside the inner ring (caused by the same problem, just less severe).
Again, you really -need- to post some images or be more clear in your question.
Joe89