Evening,
iso linux disk error 80, AX = 42F0, drive 9F ?
is a Linux bad read issue. The CRC may check out but the ISO may be bad at the source. I suggest redownloading the file to an alternate hard drive. Also make sure it's not on a removable usb type device. Otherwise it should work. The ISO is really only used during the initial loading of ESXi installer then it's all memory so something is getting copied bad.
Try re-download