Help with EAC logs

[Ripman]

I need help determining if I have a "good" rip.

- ASUS X551M-X451 labtop with DVD drive (TssCorp)
- Another same exact ASUS X551M-X451 labtop with same DVD drive (TssCorp) - machine has a different win10 build
- Windows 10 with most recent updates (both)
- Exact Audio Copy 1.1 (both)
- LG USB BD drive
- 2 brand new CDs - same exact title, catalog no., upc, etc.
- 2 results in AR db to match; another AR result is one of mine so there are now 3

Bought a new CD a few weeks ago. Tried ripping it. It gave me different CRC's compared with AR for track #5, and the image. So I got a refund for the CD, and ordered a new one. Tried ripping it. Same problem.

Both CDs have "curvy areas" on the CD surface that are "discolored", which could be caused by the plastic and AL not being perfectly sealed. The "curvy areas" seem very similar on both CDs, so maybe the machine used to make these CDs was in need of service.

So I ripped the 2 CDs in the 3 drives to see if I could get better results, or at least a match. In the ASUS DVD drives, I get 4 copy CRC matches - so two different source CDs in two different drives give the same copy CRC. I also get matching copy CRCs from the LG USB drive, but these CRCs don't match the ASUS DVD drives. In the last, most recent attempt with the LG USB drive, I got a read and copy CRC match, and the copy CRC match was the same for the other CD.

I am trying to determine if I have a "good" rip, and it's complicated by the lack of other results to match against in AR or ctdb, a potentially damaged CD, and that read and copy CRCs are sometimes different for "good" rips. Finally, the CD is a reissue of a title originally released in the early 90s - I could be attempting to match against a rip of this prior release, which may or may not be exactly the same.

Here are the 6 logs for the 2 CDs in 3 different drives. The numbers on the logs indicate the order in which the rip was performed, recognizing that the first rip ended up in AR, and I discarded the rip and logs for that one.

https://www.dropbox.com/s/qscbe8in9y6gcsk/EAC_logs.rar?dl=1

Thanks. Btw - I am thinking the rip is "not good" because I cannot get matching copy CRC's on drives made by different manufacturers (viz., ASUS dvd drives vs. LG USB drive).

[sauvage78]

For me, the rips are not accurate & the CD are probably bad if you don't have similar issues with other CD. Yet, it doesn't necessarily mean that you will be able to hear any glitch. Just listen.

So depends on what is "good" for you ... if "good"=accurate it's not, if "good" means glitchless, then the answer is "maybe".

[Ripman]

I agree. I have a pretty refined ear, and I couldn't hear anything.

[Ghitulescu]

Ensure you use the same CRC algorithm on both computers. Also that the offset was corrected according to the drives you used.

Then, well I am surprised you haven't found it yet, you can check the CRCs against the accuraterip database.

[Ripman]

Thanks.
- EAC does the Crc calc
- offsets set appropriately - in logs
- 2 rips found in Ardb per logs. I match on 1/2. A third is my original rip.

I'll probably pick one of the rips with the least number of differing samples. I could try a repair from ctdb but probably won't go that route unless I hear something bad.

[Ghitulescu]

- EAC does the CRC calc

:) I know it does :) but you can parametrize it :) :) :)

[Ripman]

Ah, I see your point. I used the ms fciv.exe utility v2.05 that comes with Win to verify the checksums of the 6 different wavs.

The ASUS drive wav images have the same exact checksum, and the LG drive wav images have the same exact checksum.

The ASUS drive rips show 130 samples that may be different; the LG drive rips show 225 samples that may be different -- again, the lack of AR or ctdb results complicates this one. I'll probably use one of the ASUS rips.