External dvd drive does not work when upgrading from Sierra to High Sierra
Hello,
I have two iMac 27" (one mid-2010, another late-2013) and four MacBook Air 13" all working so far with Sierra all these years.
Last week I've decided to upgrade all of them to High Sierra then to Mojave except the iMac mid-2010 which cannot be Mojave upgraded.
My external DVD drive (ASUS brand) worked very good all these years with Sierra and still works fine with Mojave so I can view DVD's. However it does not work anymore with my iMac mid-2010 under High Sierra, the DVD icon will show on the desktop but the DVD player refuses to launch (it says impossible to find a valid DVD reader - error 70012).
What could be done to fix this issue since under Sierra, the external DVD drive worked find and now it does not work anymore under High Sierra ?
Thank you and Happy New Year, Albert
iMac 27″, macOS 10.13