Hello ~
I've been trying to get a non-error rip using Enable Ultra Secure Ripping selected and after trying with a few different disks, it's not possible.
My optical drive is C2 capable.
If I de-select, "Enable Ultra Secure Ripping" then my rips are successful.

How important is using "Enable Ultra Secure Ripping" ?
What exactly is Ultra Secure Ripping doing?
If not selected, are my rips still well verified for accuracy

My log shows "AccurateRip: Accurate (confidence 89) for most tracks from a lightly scratched disk. Is this good enough?
Or, should confidence be 100?
What is an acceptable confidence level?

from my log:
Track 14: Ripped LBA 177980 to 195425 (3:52) in 0:23. Filename: /Users/kenheyman/Music/dbPoweramp Rips/Brian Setzer Orchestra, The/Vavoom!/14 Brian Setzer Orchestra, The - Gloria.flac
AccurateRip: Accurate (confidence 88) [Pass 1]
CRC32: 701AD171 AccurateRip CRC: 98456EF9 (CRCv2) [DiscID: 014-0016312a-00ecb1fd-a80a2d0e-14]
AccurateRip Verified Confidence 88 [CRCv2 98456ef9]
AccurateRip Verified Confidence 68 [CRCv1 9d219020]
AccurateRip Verified Confidence 10 [CRCv2 cb110043], Using Pressing Offset +295
AccurateRip Verified Confidence 5 [CRCv1 2c2e2ecf], Using Pressing Offset +295