A question about my P2 Transport

Ok...here is the problem.....when I go to play a cd, most cd's will not load (it doesn't find any tracks, and will not play the cd). But if I put in this one cd it reads it everytime and will play, and after it plays this cd it will play any other cd that I have no problems..... Any idea's on what is going on here?
Also I have seen people post about getting mod's done to these transports by "GNS (Steve Huntley)".... can you tell me how to get in touch with him!

Thanks!