Sounds like your laser already had problems reading the +NSR-Sector on those newer versions and now has problems to read the disc at all...
Originally Posted by sony_g
You offered pretty much no information, what equipment you're using.
Which FMCB-Version, or loading-method?
Which disc-type and manufacturer...
PS2 V7/DMS3 V2 (FW:2.4b7); Seagate Baracuda 200GB
PS2 V7/CC1.0 (FW:34 hacked v2 BM:2.1.6); Maxtor DiamondMAX9 PLUS 160GB
PS2 SCPH-30004R; NoMod+NoLaser
3xSony MC 8MB
MAX/Datel 16MB with Boot-CD
Custom FMCB 1.8b+ Beta-Build, my AIO 0.5, Sony&xRhino-Linux