Pioneer 111d or 112d?

pioneer 111d or 112d ?which 1 will u get? when i buy a dvd writer that is on the market for a long time (like the 111d for example)do i get the latest dvd firmware on it ,or not???if something bad happens during the firmware update do i still have the warranty or not???3 question what do u have to check when uor dvdwriter doesnt work anymore?dont know why my lg 408 2b read only the xp cd nothing else why?what can i do?