The xbox dvd drive is SDG-605B version B it scratches discs. Refer to discScratches.JPG the scratches are not circular. I am trying to pin point the root cause of the damage. The xbox must of been dropped. The optical pickup head must be causing the scratches but I don't see any raised sharp edges that would cause those marks. The dvd drive reads both cd's and dvd's but they get damaged in the process. The xbox original is TSOP so the only use I have for the drive is formatting the hdd. I thought I would disassemble the dvd drive and compare it to an identical drive.
https://drive.google.com/drive/folders/1B0_VHvgu-ACzN3azkw6Aq4r6GdUQbuLW?usp=drive_link
A.JPG is the dvd drive scratching discs
B.JPG is a reference drive identical to A.JPG