Even though you are using the latest firmware for your drive now...it is still over three years old.
Old drive and new media aren't getting along well, might be time for an upgrade in drives.
Give an inch and they will (try to) take a mile.
There is a donate option that if everyone who thinks the program is the cat's meow would make a contribution maybe LUK would make a little dough...won't get rich, but would offset the long hours he puts in developing the program to make it better for all of us.
Imgburn will not "rip" any protected content from any copy protected source...it will read unprotected content via "Read" mode and burn folders via "Build"mode or images in "Write" mode.
Have you had a look at the detailed guides yet?
I tend to think that freeware is usually better the the latter...have you ever tried to get support from Nero or other similar programs? You won't beat the support you get from this product on this site or other forums that stand behind this excellent program.
I can understand the desire to try newer technology, such as DL media, but when most things fit just fine with little or no compression on SL media which is proven, cheaper and more reliable....I just can't justify the cost difference.
I have almost completely abandoned Nero for other programs such as Imgburn and I'm not sorry at all...I think Imgburn is the best burning application available. It is feature rich and keeps getting better all the time. LUK puts a lot of hard work as do all the beta testers here to make it all the much better.
There will usually be some loss of quality as the output won't be exactly as the source. I'd also recommend +r DL and advise to stay away from the -R's.
The % of the quality score doesn't mean as much as the amount of PIF's and PIE's you get...the lower these numbers the better. Blu can elaborate more on the "out of spec" comment he made earlier for the low down. All in all they don't look too bad, but you should scan at 4X with your lite on as suggested.