Both usb-storage and libata are implemented on top of the SCSI layer. When libata is in use, CD writer programs fail to write CDs through usb-storage. I'll have to say that it's relevant.
Because of this bug and the fact that libata might have problems supporting some old IDE chipsets, I strongly suggest keeping the old IDE drivers until libata further matures.
Both usb-storage and libata are implemented on top of the SCSI layer. When libata is in use, CD writer programs fail to write CDs through usb-storage. I'll have to say that it's relevant.
Because of this bug and the fact that libata might have problems supporting some old IDE chipsets, I strongly suggest keeping the old IDE drivers until libata further matures.