What looks the core issue here is the firmware bug of TSSTcorp drives (there are too many mixed reports). Some time ago a quirk for the kernel was added for these drives (ATA_HORKAGE_IVB) too, so the kernel workarounds the problem also on old firmware.
Does still anyone see this problem on newer kernels? If yes, then please post the output here of the kernel/ubuntu version used (if not yet posted above), and the output of:
sudo hdparm -i /dev/sr0
Replace /dev/sr0 if needed (in case is other drive giving the problem).
What looks the core issue here is the firmware bug of TSSTcorp drives (there are too many mixed reports). Some time ago a quirk for the kernel was added for these drives (ATA_HORKAGE_IVB) too, so the kernel workarounds the problem also on old firmware.
Does still anyone see this problem on newer kernels? If yes, then please post the output here of the kernel/ubuntu version used (if not yet posted above), and the output of:
sudo hdparm -i /dev/sr0
Replace /dev/sr0 if needed (in case is other drive giving the problem).
Also please attach full dmesg with the error.