This short article reports two imperfections or implementation bugs of the default tone mapping operators (TMOs) of the JPEGXT HDR image compression standard. In JPEGXT. profiles A and C use the same default TMO. while profile B uses a different default TMO. https://www.roneverhart.com/Toshiba-MG09-MG09ACA18TE-18TB-7-2K-RPM-SATA-6Gb-s-512e-3-5in-Refurbished-HDD/