You didn't mention the speed at which you burned, but since 90 and 99 minute discs are outside of the standard and violate specifications such as track pitch, you should burn them at slow speeds to increase the burn quality on these difficult discs. I also have not burned any such discs, but I think most people who do recommend 16x as the highest speed at which you would ever want to burn them.
Also, try updating your drive to the latest firmware if you have not done so. LiteOn firmware updates improve media compatibility. The latest for your drive is SS0C:
Finally, you might want to upgrade Nero to the latest version (currently 220.127.116.11a, but likely to be replaced by a new version shortly - perhaps as soon as this Tuesday):
I don't think this is the cause of your errors, but is still recommended if you have a dated version.