Scratched Disks and C2 errors

[Eric2]

I have a MacPro running bootcamp and Windows 7. I recently purchased dbpoweramp to rip my CD’s to AIFF format.

The Drive is a Pioneer DVR-115D which should have c2 support. However when I go to Detect c2 Support in dbpoweramp and insert a scratched CD it always comes up with C2 is not supported. I was sure this drive has c2 support so I tried the black marker test and c2 was detected.

However, A few days later I found a CD that was in very poor condition with extreme scratching all over the surface. I tried the test again and once again it came back with no C2 support. Other than the black marker test I can't get the dbpoweramp to read c2 on any of the CD’s I’ve tried.

As the C2 doesn't seem to be working correctly or is very poorly implemented on this drive should I turn off C2 errors and use Ultra Secure ripping to achieve the best results?

Thank you.

[Spoon]

Re: Scratched Disks and C2 errors

Does the disc verify with AccurateRip? if so then c2 was perhaps not needed (if no re-reading).

[Eric2]

Re: Scratched Disks and C2 errors

Hi Spoon, thanks for the reply.

Using the heavily scratched CD with C2 errors on all 10 tracks verify with AccurateRip. Although track 8 Re-Riped 18 frames then verified. Track 9 Re-Riped 3 frames then verified.

With C2 off all 10 tracks verify with AccurateRip. Both tracks 8 & 9 had 2 passes and 5 frames Re-Riped.

Does this help with the recommendation? Let me know if it helps to do any more tests.

[Spoon]

Re: Scratched Disks and C2 errors

It is difficult to say, if you enable the Secure Extraction log: complete (CD Ripper >> Options >> Secure Settings), it lists the frames which c2 highlighted as an error, try ripping track 8 and 9 with that log enabled (also check the option 'Add to Information Log' and make sure it is shown CD Ripper >> Options Drop Menu >> After Ripping 'Display Information Log'

[Eric2]

Re: Scratched Disks and C2 errors

Drive & Settings
----------------

Ripping with drive 'D: [PIONEER - DVD-RW DVR-115D]', Drive offset: 48, Overread Lead-in/out: No
AccurateRip: Active, Using C2: Yes, Cache: 1024 KB, FUA Cache Invalidate: No
Pass 1 Drive Speed: Max, Pass 2 Drive Speed: Max
Bad Sector Re-rip:: Drive Speed: Max, Maximum Re-reads: 34

Encoder: Aiff

Extraction Log
--------------

Track 8: Ripped LBA 101595 to 112022 (2:19) in 0:31. Filename: C:\Users\Paul\Music\Bert Jansch\Best of Bert Jansch\08 Bert Jansch - Woe Is Love My Dear.aif
AccurateRip: Accurate (confidence 6) [Pass 1, Re-Rip 2 Frames]
CRC32: DAD7EC25 AccurateRip CRC: 0D26D334 [DiscID: 010-000c5f0e-0061d2f1-97077e0a-8]
Re-rip Frame: 111803 (00:02:16.106). Insecure (c2 dropped 26) [c2 best match]
Re-rip Frame: 111823 (00:02:16.373). Insecure (c2 dropped 32) [c2 best match]

Track 9: Ripped LBA 112022 to 125662 (3:01) in 0:37. Filename: C:\Users\Paul\Music\Bert Jansch\Best of Bert Jansch\09 Bert Jansch - Nobody's Bar.aif
AccurateRip: Accurate (confidence 6) [Pass 1, Re-Rip 5 Frames]
CRC32: 5BE50A23 AccurateRip CRC: 47B119E7 [DiscID: 010-000c5f0e-0061d2f1-97077e0a-9]
Re-rip Frame: 125283 (00:02:56.813) matched 10 / 11 (c2 dropped 10)
Re-rip Frame: 125284 (00:02:56.826) matched 10 / 11 (c2 dropped 4)
Re-rip Frame: 125319 (00:02:57.293) matched 10 / 11 (c2 dropped 2)
Re-rip Frame: 125370 (00:02:57.973). Insecure (c2 dropped 32) [c2 best match]
Re-rip Frame: 125371 (00:02:57.986). Insecure (c2 dropped 32) [c2 best match]

--------------

2 Tracks Ripped Accurately

[Spoon]

Re: Scratched Disks and C2 errors

c2 is working as it is dropping frames.

[Eric2]

Re: Scratched Disks and C2 errors

Just to be clear - your recommendation is to turn c2 errors on? even thought in my case for some odd reason scratched disks cannot be detected when I press the test button. The c2 errors are working to some degree and therefore its a benefit to have it turned on?

Many thanks for your help.

[Spoon]

Re: Scratched Disks and C2 errors

I would use c2 unless you have information that its enabling is detrimental to the ripping.