MSI 48x combo firmware

As a second drive I have an unmarked MSI 48xCombo (I think CR48A) which orrigionally came with a cheap pc from Tiny Computers. I’ve upgraded the firmware to the latest listed for the drive on the MSI website which is 160D. However I’ve noticed that there a revision from 160D to 180D for a different drive and other later firmwares for their CR52 drives. Does anyone know if a) the 180D firmware will work and b) whether the newer CR52 models are just the same drive with better firmware.