Trouble with PS2 DUo2SE chip

[20cobra01]

Very interesting comments about the laser issue. Now that I think of it, I always see the browser screen before originals load, now that I think about it I do recall earlier on that originals may have bypassed the browser screen while booting, but this was maybe a year or two ago. If this is indeed the problem and cleaning does not help out what are my options, (getting another PS2?) Also the media that I am using to back up games are verbatim DVD -R (for GTA San Andreas) Verbatim DVD+R(for another back up of San andreas) and I have a back up of Castlevania Lamont of Innesence on another verbatim DVD -R. I have been able to get the back up of Castlevania to make it to the RSOD as well as a few Disk Read errors. I have yet to get either of the GTA to make it past the disc read error. I believe the castlevanis was around 2.5 Gb when ripped, (noticed that it barely covered half of the disk). Going alone with this theory I will try to boot less laser intensive disk with the mod chip enabled. The disk I have been using is NCAA Football 2005, since I did not think it would matter, but I will try the castlevania original next. I have just finished reinstalling this chip for the 3rd time, if one thing is for certain, I am becoming very efficent at breaking the PS2 down and also aware of just how much of it is not neccesary to be assemble for testing, my wife thinks I will have the house burnt down by the end of the night. Thanks for the feedback, everyone has been very helpfull.