My experience is that LG (GSA-H55N) is a crappy product that it can, and will fail at any moment.
I have two of these, and they both fail to recognize CDs any more (read or write).
It is just a crap-shoot which function will fail first.
See all the postings in this forum - many people have problems with LG drives.
LG tech support told me: “the drive is broken - replace it”.
Flashing it with the latest firmware won’t help. (Done that).
I think Pioneer is a more reliable brand.