Nero BurningROM

I have burned many, MANY discs with NeroExpress and Nero Burning ROM over the years. I currently use v6.6 mainly because I'm used to it, it does what I need, and I've had no reason to use any of the others (I've tried 'em, and still see no reason to change). Anyway, I just noticed that when I burn with my E: drive (it's a Samsung DVDROM/CDRW combo) using Nero BurningROM with .bin/.cue files, it says "Super Link" where it used to say "Buffer Underrun Protection" when I use my D: drive to burn (NEC DVDRW). I've used drive E: many times, and I guess I just never saw it before... what is it? What is "Super Link"?? I looked through the built-in Nero help and there's no mention of SuperLink.... Thanks.

Screen shot attached below for clarification....