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who produced Sony 48x CD-R?

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who produced Sony 48x CD-R?

Postby jtan on Tue Jun 03, 2003 12:04 pm

any idea?

just wondering why my Lite-On LTR-48125W can't identify it... Smartburn utility can't even tell what's the maximum speed it can burn.
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Postby Ian on Tue Jun 03, 2003 12:17 pm

Their 48x media? It's manufactured by Sony.

You can also use Nero and CD Speed's disc info to determine the manufacturer.
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Postby jtan on Tue Jun 03, 2003 12:36 pm

any idea about the optimum speed i should burn at?

i'm a bit afraid to burn it at 48x or 32x because of my experience with sony 32x, when i burn it at 32x it's not readable by other drive, it's only readable by other drive at 24x and lower so i burn them at 16x...
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Postby CDRecorder on Tue Jun 03, 2003 2:30 pm

Give it a try a 48x, then do a scan with KProbe in your 48125W. If the results are good, you can burn at 48x. If the results are less than acceptable, try a lower speed and test again.
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Postby Ian on Tue Jun 03, 2003 2:36 pm

To be honest, I haven't had good results with that media. Recording at 32x or lower gives the best results for me.
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Postby jtan on Tue Jun 03, 2003 3:41 pm

here's 16x
Image

here's 40x
Image

here's 48x
Image

all of them on LTR-48125W, Sony 48x CD-R.

what do you recommend i use? i mean the speed to use...
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Postby CDRecorder on Tue Jun 03, 2003 3:52 pm

40x would probably be the best because it has the lowest C1 and C2 error counts.
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Postby jtan on Tue Jun 03, 2003 4:00 pm

is the test for C1/C2 reliable? i mean can i assume that a good C1/C2 means that the CD-R i produced is more or less reliable and can be played in VCD players easily?
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Postby CDRecorder on Tue Jun 03, 2003 4:07 pm

I think it is reliable, but I'm not an expert. I will say that, in my experience, poor players seem to read discs better if the C1 and C2 counts are lower.
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Postby tlotz on Tue Jun 03, 2003 4:07 pm

I read somewhere that Lead Data makes the Sony Suprema CD-Rs (including the 48X certified ones) and stamps the Sony name in the ATIP info. The Sony Supremas I bought (then returned when I found out they were crap) were Sony stamped. Lead Data, the real maker of the Sony CD-Rs, is another Taiwanese CD-R maker that doesn't have a good reputation (from what I've read). So, current Sony CD-Rs should be avoided, and the KProbe results above support my statement. Just use good Taiyo Yuden made or Verbatim DataLifePlus Super Azo CD-Rs and you won't go wrong. Fuji 48X Taiyo Yuden made CD-Rs are highly recommended and so are Maxell CD-R *Pro* 40X CD-Rs (which overclock to 48X without a problem). The Maxell CD-R *Pro* 40X CD-Rs are also Taiyo Yuden made. If you buy Fuji 48X or Maxell CD-R Pro CD-Rs, make sure they are made in Japan.
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Postby jtan on Tue Jun 03, 2003 4:10 pm

probably that's the reason why i noticed some of my cheap CD-R is better than Sony...
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Postby jtan on Tue Jun 03, 2003 4:13 pm

i forgot to ask some more...

what's the difference between C1 and C2? why is it that some of my CDs don't have much error on C1 but have error on C2?

what's better... a CD with error on C1 or on C2?

thanks.
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Postby tlotz on Tue Jun 03, 2003 4:29 pm

jtan wrote:probably that's the reason why i noticed some of my cheap CD-R is better than Sony...

Yes, that's exactly right. My understanding is that Lead Data's media is cheaper than CMC's! So both Ritek and CMC who make a lot of the cheap media both make better media than Lead Data (at least this is my understanding). My TDK 52X Ritek disc (came with my CD burner) burned @ 52X runs circles around that Sony 48X media--and Ritek discs don't offer *top* quality like Taiyo Yuden (TY) and Verbatim/Mitsubishi Chemical. In fact, that TDK 52X Ritek disc provides reasonable quality. I just don't see a point in buying Ritek made media when you can easily get better quality TY and Verbatim/Mitsubishi Chemical media. As for CMC or Lead Data media, I would just avoid it, period.
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Postby CDRecorder on Tue Jun 03, 2003 4:49 pm

C1 errors are less severe than C2 errors. Generally, something isn't as it should be if you are seeing any C2 errors.

AFAIK, C1 errors are all correctable (by whatever drive reads the disc). You can expect to see some C1 errors on any disc you burn; no burner is good enough to create recordings with no C1 errors. If you use good media on a good recorder, you will probably have less C1 errors on the discs that you record than normal pressed CDs do.

Some C2 errors are correctable, and some are not. They are more serious, and, as I said before, you shouldn't ever see any C2 errors.
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Postby rdgrimes on Tue Jun 03, 2003 6:04 pm

Here's the Sony 48x that I have:

This Disc is designed for CD-RW/COMBO Drive Only.
Disc Type, Material = CD-R, Phthalocyanine
ATIP Lead-in = 97m 22s 67f
Norminal Capacity = 702.83MB (79m 59s 74f)
Disc Manufacturer maybe = Acer Media
SMART-BURN Speed Limit = 52X

YMMV
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Postby jtan on Tue Jun 03, 2003 10:59 pm

what software did you use to check your CD-R?

i used MInfo v1.3 and it says it's manufactured by Sony, and said the rated speed is 40x and not 48x! though on the box it's written there clear that the speed is 48x...
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Postby rdgrimes on Tue Jun 03, 2003 11:20 pm

what software did you use to check your CD-R?


The hint is in the paste from the program. :P
You can see a test here:
http://club.cdfreaks.com/showthread.php ... post384831

Here's how MInfo sees them:

LITE-ON LTR-52246S
Drive Type = CD-RW
Disc Type = CDR (B-)
Lead In = 97:22:67
Lead Out = 79:59:74
Nominal = 702.83MB (79m 59s 74f/LBA:359849)
Manufacturer = Daxon Inc.
Cur. Speed = Wrt(52X),Rd(52X)

MInfo is a work in progress. Sony buys media from different sources, so don't depend on each spindle being the same.
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Postby jtan on Tue Jun 03, 2003 11:46 pm

that's annoying.... i hope sony won't do it. i will quit buying sony cd-rs from now on unless they start doing quality control.
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Postby Halc on Fri Jun 06, 2003 4:34 am

The results (burn speed vs c1/c2 errors) are interesting, although not conclusive. I take it you only burned one disc at each speed? The differences could be just down to media quality, esp. if you use some of not-so-good quality manufacturer discs.

However, it could also be that burning at a higher speed (16x vs 40x, I don't think 40x vs 48x differences are big enough to draw conclusions) on this drive using this particular disc produces better results.

If so, what is the explanation? Dye optimized for a certain burn speed and laser power?

regards,
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Postby jtan on Fri Jun 06, 2003 4:45 am

i have a box with 100 Sony CD-Rs. i noticed that the quality of the 100 CD-Rs in one box is the same. But differs from other box of 100s.

so now, i burn at 40x, when the quality is not that good, i burn the entire box at 16x. but when the quality is good, i burn at 40x for the entire 100...

i think Sony really do get CD-Rs from different sources with inconsistent quality...

so i always do C1/C2 testing for every box of 100 to know whether i should burn at 40x or 16x.
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