An old thread with a small test and I use OPC mainly only to find out when a burner is near it's dead. If OPC works when it's new, it will start failing near the death date, based on my crashed burners.
http://forum.imgburn.com/index.php?showtopic=6334
A disc scan on the burned disc. Only certain burners are reliable for this test. Mainly genuine Lite-Ons.