411s problem reading CDs, DVDs ok

my 411s, unmodified, will not read cds anymore, I had a cd drive on this computer until recently so didn’t notice. If you can help, please do.


Win XP Sp2
micro ata drivers
all other drivers nvidia

tried all jumper setting on drive, moved to different locations on cable, dropped to pio mode, no difference with any of these. Un installed incd. I am not sure how the drive reads cds vs dvds, I am wondering if it has a second pickup that is burned out.