the rom might have corrupted.
the discs hes using might not be compatible with the older rom.
the newer rom might repair a mistake in code that ruins the burning process after a period of time.
the driver code might have bugs or not completed at product release time.
there are so many variables, it might not be the firmware, however owning a multitude of cdrom / dvd writers at least 7 CDRW & DVD-+RW in my studio now, it wouldnt hurt to upgrade it and see.
does that help answer your question jerbsy ?
If no-one gives your an answer to a question you have asked, consider:- Is your question clear.- Did you ask nicely.- Are you showing any effort to solve the problem yourself 