Cannot read commercially produced discs

Hi, i need some help regarding tis issue…
my writer is a lg gsa 4163b with A105 firmware…there’s a problem in that it cant read discs that are commercially produced ie; installation discs, drivers and stuff.
but thing is that it can read data discs that have been burnt, dvd videos as well as audio discs (even though audio discs have failed once in a while)…so i’m puzzled as to what the trouble might be…absolutely lost in fact…

can some kind soul pls enlighten mi?

You have posted this problem twice! Please read the forum rules which are there to stop cross posting which causes unnecessary work for the very people you are asking help from.

i apologise…=(