Strange reading problem with dreamcast CD-Rs

I’ve been having a strange disk-reading problem with one of my dreamcasts: This happens only with CD-Rs not any official GD-ROMS. Some backup CD-R recording make the laser move to the very outer rim of the disk, when this happens the drive grinds on the outskirts of the disk. I’ve tried the laser calibration with no luck. the laser seems fine and works at ~ Ohms, just like the rest of my dreamcasts This particular drive is made in Korea.