CD/DVD Drive Accuracy List 2014

[Oggy]

Re: CD/DVD Drive Accuracy List 2014

Hi - Really appreciate the extra mile Spoon goes to publish/share these information every year. Has anyone managed to find CD/DVD Drive Accuracy List 2015 version yet or currently pending?

No, but Spoon has posted the 2016 list, maybe this could be made a Sticky?

[Octave]

Re: CD/DVD Drive Accuracy List 2014

Hi - Really appreciate the extra mile Spoon goes to publish/share these information every year. Has anyone managed to find CD/DVD Drive Accuracy List 2015 version yet or currently pending?

[Oggy]

Re: CD/DVD Drive Accuracy List 2014

Out of interest I've just tried out five of my CD drives, including the Matshita / Panasonic at the top of this list. Bought a brand new CD and attempted to rip.
Internal HP drive came up with multi thousand frame re-rip, aborted.
2 year old external TSST drive came up with errors, aborted.
Matshita UJ-85J gave an AccurateRip reaching X19.
Old Asus ide, via USB powered adapter, gave AccurateRip reaching X 28.
Lite-On ide, via adapter, gave AccurateRip reaching X 42.

The Asus and Lite-On have never failed me on Copy protected CDs, the Matshita works on some, the TSST is next best and internal drive not wanted to know on the most discs.

I guess this is mostly down to the firmware, but really I offer no explanation. I stick to older 5.25" ide drives, as these seem to read all discs at faster speeds. Tried HP, Asus and Lite-On so far. Picked up a LG ide drive for £2 yesterday (with 3 month warranty), so you really don't have to spend a lot of money to get fast, reliable AccurateRips.

[garym]

Re: CD/DVD Drive Accuracy List 2014

If the tracks show AR matches, even from different drives, you're good. No need to rip them all from a single drive. An AR match is an AR match!

[Drummerboy]

Re: CD/DVD Drive Accuracy List 2014

Well, what you can conclude is that drive impacts recognition of the "album". Different AccurateRip numbers (significantly different, and higher during a previous rip) - mean that the software believes the same CD to actually be different "versions" of the same album, and so is comparing to a different set of data.

AccurateRip is of use mostly when you have a disc in good shape but your drive can't detect errors (or is bad at correcting them accurately) or when the disc is damaged and you want to check if the read was as faithful as possible. But - it all depends on the signature of the disc that the drive is able to produce and whether or not there have been a significant number of contributions with the same signature. Its a disc read comparison - not a song comparison.

Hi everyone.

Following my post number *42 replying to garym, I have ripped some more of the "problem" tracks from cd albums using the external Sony drive to which I have referred in these recent posts and which msheridan comments on above. I also unchecked "C2 error pointers" as garym had suggested. The results have been mixed. For some of the discs that had, for example, originally reported errors on only specific tracks of the album (with Accurate Rip confidence matches on the rest of the album tracks) these have ripped the one or two problem tracks showing an Accurate Rip match. So what I now have is all the tracks on the particular albums ripped with Accurate Rip matches, but from using two different drives for the album. Taking what msheridan said above about it being a "disc read comparison, not a song comparison", does it really matter that I now have a whole album of tracks with 100% of them showing Accurate Rip matches, but which has resulted from ripping some tracks on one drive and the others using the other drive? Or should I strictly be ripping the whole album again using my external Sony drive and overwriting the accurate rips that I had previously got from using my internal drive? For example, I previously ripped "Brothers in Arms" by Dire Straits on internal drive and only the last track "Brothers in Arms" reported an error. So I re ripped just this single track using the Sony drive and it produced an Accurate Rip. I then simply cut and pasted this single track into the original album folder that I had created from the original rip, overwriting the original one that had errors.

Other discs that I have re ripped using the Sony drive have still reported errors after 2 clean passes (Ultra Secure 1 and 2). So I will have to find another drive to try for these.

[downtimeguy]

Re: CD/DVD Drive Accuracy List 2014

For those who would like to use the highly rated Matshita / Panasonic UJ-85J without much fuss, I recently found a supplier to install a new UJ-85J in an external USB enclosure. The drive I received is an UJ-85J-C old stock from Feb 2007. It seems there were so many manufactured for Apple macbook pro line that there are plenty of new drives still available. The C revision is the typical version and reports simply as UJ-85J to the system. There exists a B revision, but the supplier does not believe there are any other versions.

The enclosure is a mini ATA/IDE to USB controller and came with dual USB cables for both data and power. I use EAC with a test music CD reporting positive results from AccurateRip. So far, this UJ-85J over USB has tackled a difficult collection of short stories on CD where my stock laptop drive couldn't tackle the last track on each disc.

For the USB enclosure:

http://store.mcetech.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=ENC5SLU2&Category_Code=

Use the MCE email contact link, or try Arnie at: arnie@mcetech.com

Arnie installed the drive in a black version of the enclosure, including a nice bezel with spiffy priority shipping. He warned me that the eject button would not function and discs must be ejected by the system instead. All around fantastic service with a reasonable price.

[Oggy]

Re: CD/DVD Drive Accuracy List 2014

Thanks a lot. Makes sense and good to know this can happen quite a lot with different drives. I thought that might be the case. And thanks for your subsequent reply regarding the multiple AR results

On a couple of cd's (which are maybe problem cd's with scratches etc.) whereas my internal drive originally showed some tracks with errors (in red) whilst the Sony drive also did not manage to rip these tracks with any Accurate Rip matches, it did nevertheless say that these tracks were "Secure" (i.e. in green). I think on a previous reply that you sent me a while ago to a different question I raised about ripping, you said that this was still a fairly satisfactory result. I guess a positive Accurate Rip match would have been ideal though and I suppose I could try that particular disc with another external drive

I think you'll go through a lot of drives or copies of discs trying to get an AccurateRip on every disc. Give it a clean, try again and see the result - a Secure rip is very good!

It is a good idea to try different drives. As you've found, people will either give you them, or you can buy them cheap. I've now settled on a 7 year old Lite-On, which hasn't had any problems with copy protected discs (yet!) and rips quickly, fairly quietly and accurately. It's between 2-3 times the speed of the internal drive.

Happy and accurate ripping!

Oggy.

[Drummerboy]

Re: CD/DVD Drive Accuracy List 2014

First, and most importantly, many drives *report* that they handle C2 Error pointers even though they don't (or don't properly). I've had several drives that report "yes" on C2, but don't work properly with C2 errors checked. So this is not at all unusual.

Second, it seems unchecking C2 has solved your problem and you are now getting error free rips with AR matches. Again, I've had the exact same issue with several drives. So bottom line, you're all good now. That drive simply doesn't deal well with C2 errors.

p.s. To make up for this, in my ultrasecure settings, when there is no AR match, I have it do:
minimum ultra 2
maximum ultra 4
stop after 2 clean passes

Thanks a lot. Makes sense and good to know this can happen quite a lot with different drives. I thought that might be the case. And thanks for your subsequent reply regarding the multiple AR results

On a couple of cd's (which are maybe problem cd's with scratches etc.) whereas my internal drive originally showed some tracks with errors (in red) whilst the Sony drive also did not manage to rip these tracks with any Accurate Rip matches, it did nevertheless say that these tracks were "Secure" (i.e. in green). I think on a previous reply that you sent me a while ago to a different question I raised about ripping, you said that this was still a fairly satisfactory result. I guess a positive Accurate Rip match would have been ideal though and I suppose I could try that particular disc with another external drive

[Drummerboy]

Re: CD/DVD Drive Accuracy List 2014

Hi Drummer boy, how quick was the Sony compared to the internal drive?

Oggy.

Hi Oggy

Funny you should ask that. It was quite a bit quicker.

[Oggy]

Re: CD/DVD Drive Accuracy List 2014

I have just come back to this thread after buying a SATA/IDE adaptor as Spoon and Oggy have suggested. I tried this out with an old Sony CRX215A1 CD drive that a work colleague gave me (don't know how good this is but it is quite old). I went through the dbpoweramp set up guide, as I had done for my internal laptop drive previously, did the C2 error pointers test (which to be honest detected an error very quickly and before a quarter of the way through the test) and configured it up for Accurate Rip successfully with one cd. I then tried ripping that cd, Let It Be by The Beatles, and it showed two tracks had errors, and the others gave a positive high Accurate Rip result (i.e. lots of matches). But what I don't understand is when I ripped the same cd on my laptop's HL-DT-ST-DVDRAM GT20N drive, it ripped every track with no errors at all with a higher Accurate Rip number for each track. Indeed, I have successfully ripped (i.e. no errors and Accurate Rip verified) many of my cd's using this laptop drive.

What can I conclude from this as I don't understand? Is it because the C2 errors test was not really conclusive? Why would the Sony drive highlighted errors on certain tracks or are these not true errors?

Thanks

Hi Drummer boy, how quick was the Sony compared to the internal drive?

Oggy.

[garym]

Re: CD/DVD Drive Accuracy List 2014

AccurateRip Verified Confidence 165 [CRCv2 c1c4bf7b]
AccurateRip Verified Confidence 200 [CRCv1 5952360f]
AccurateRip Verified Confidence 96 [CRCv2 b4a93b02], Using Pressing Offset -223

And this is just providing more info. It is reporting the comparisons using CRCv2, CRCv1, and CRCv2 using a different pressing offset. All good, just more detailed info.

[garym]

Re: CD/DVD Drive Accuracy List 2014

Thanks garym. I did this and the whole album was ripped with no errors reported/detected and high Accurate Rip matches. The CRC numbers include the same number as with my other HL drive that I originally ripped this cd with but the number of Accurate Rip matches are different and also there are other Accurate Rip results per track, such as this one for Track 1:

AccurateRip Verified Confidence 165 [CRCv2 c1c4bf7b]
AccurateRip Verified Confidence 200 [CRCv1 5952360f]
AccurateRip Verified Confidence 96 [CRCv2 b4a93b02], Using Pressing Offset -223

In the above result, the first CRC number c1c4bf7b matches with the CRC number that the original rip produced for Track 1, but whereas it shows 165 matches above, on the original rip showed only 135 matches. This seems to be the general pattern throughout the album.

So does this mean I am good to go and there are no errors?

And looking at msheridan's reply to my original question also, what can I conclude about the C2 error pointers on the Sony drive? Does it basically mean that it is "bad at correcting them accurately" as he mentioned? By way of information, in the set up options, under "CD Rom"/"Technical" it includes the following line:

C2 Error Pointers: Yes


So I thought that this meant I should check the C2 error checking box. I must admit that I do find this a bit confusing and difficult to get my head around and so any clarification gratefully received.

First, and most importantly, many drives *report* that they handle C2 Error pointers even though they don't (or don't properly). I've had several drives that report "yes" on C2, but don't work properly with C2 errors checked. So this is not at all unusual.

Second, it seems unchecking C2 has solved your problem and you are now getting error free rips with AR matches. Again, I've had the exact same issue with several drives. So bottom line, you're all good now. That drive simply doesn't deal well with C2 errors.

p.s. To make up for this, in my ultrasecure settings, when there is no AR match, I have it do:
minimum ultra 2
maximum ultra 4
stop after 2 clean passes

[Drummerboy]

Re: CD/DVD Drive Accuracy List 2014

what sort of outcome do you get if you "untick" the C2 error checking in the drive setup?

Thanks garym. I did this and the whole album was ripped with no errors reported/detected and high Accurate Rip matches. The CRC numbers include the same number as with my other HL drive that I originally ripped this cd with but the number of Accurate Rip matches are different and also there are other Accurate Rip results per track, such as this one for Track 1:

AccurateRip Verified Confidence 165 [CRCv2 c1c4bf7b]
AccurateRip Verified Confidence 200 [CRCv1 5952360f]
AccurateRip Verified Confidence 96 [CRCv2 b4a93b02], Using Pressing Offset -223

In the above result, the first CRC number c1c4bf7b matches with the CRC number that the original rip produced for Track 1, but whereas it shows 165 matches above, on the original rip showed only 135 matches. This seems to be the general pattern throughout the album.

So does this mean I am good to go and there are no errors?

And looking at msheridan's reply to my original question also, what can I conclude about the C2 error pointers on the Sony drive? Does it basically mean that it is "bad at correcting them accurately" as he mentioned? By way of information, in the set up options, under "CD Rom"/"Technical" it includes the following line:

C2 Error Pointers: Yes


So I thought that this meant I should check the C2 error checking box. I must admit that I do find this a bit confusing and difficult to get my head around and so any clarification gratefully received.

[msheridan]

Re: CD/DVD Drive Accuracy List 2014

I have just come back to this thread after buying a SATA/IDE adaptor as Spoon and Oggy have suggested. [...] I then tried ripping that cd, [...] what I don't understand is when I ripped the same cd on my laptop's HL-DT-ST-DVDRAM GT20N drive, it ripped every track with no errors at all with a higher Accurate Rip number for each track. Indeed, I have successfully ripped (i.e. no errors and Accurate Rip verified) many of my cd's using this laptop drive.

What can I conclude from this as I don't understand? Is it because the C2 errors test was not really conclusive? Why would the Sony drive highlighted errors on certain tracks or are these not true errors?

Thanks

Well, what you can conclude is that drive impacts recognition of the "album". Different AccurateRip numbers (significantly different, and higher during a previous rip) - mean that the software believes the same CD to actually be different "versions" of the same album, and so is comparing to a different set of data.

AccurateRip is of use mostly when you have a disc in good shape but your drive can't detect errors (or is bad at correcting them accurately) or when the disc is damaged and you want to check if the read was as faithful as possible. But - it all depends on the signature of the disc that the drive is able to produce and whether or not there have been a significant number of contributions with the same signature. Its a disc read comparison - not a song comparison.

[garym]

Re: CD/DVD Drive Accuracy List 2014

what sort of outcome do you get if you "untick" the C2 error checking in the drive setup?