LG GCE-8520B

2003-04-16 23:31:03

I am unable to detect the offset corrections for this drive because I have none of the reference CDs with the same press numbers. I will soon try out AccurateRip but I'm afraid I won't get any reliable result as most of my CDs were not made in Europe or USA and they are likely to have different press numbers because of that.

Has anyone with this drive succeeded to detect the separate read and write offset corrections?


If I still cant detect the separate corrections, should I use the combined read/write correction since this is the only one I am able to detect?

LG GCE-8520B

Reply #1 – 2003-04-16 23:42:41

The read offset correction for this drive is +6. If you need any help using it, don't hesitate to message me.

LG GCE-8520B

Reply #2 – 2003-04-18 23:38:06

Many thanks Seed!

There are more than 50 views to this thread.. has anyone else found the same read offset correction for this drive? ...or perhaps another value?

This is my only chance to correct the read offset. I appreciate any more input about it!!

LG GCE-8520B

Reply #3 – 2003-04-19 00:20:49

same drive, same result, trust in Seed

LG GCE-8520B

Reply #4 – 2003-04-19 01:03:57

Is it valid for all LG GCE drives?

I have a 8320B

LG GCE-8520B

Reply #5 – 2003-04-19 01:49:29

Mine is +6 as well. I think it is the same for several of the recent LG drives but not for all.

LG GCE-8520B

Reply #6 – 2003-04-19 03:48:41

Hint ... create EAC's Offset Test CD with a write offset of "0" and use that CD to determine the (already known) read offset correction of another read device ... what you get is the combined read/write offset for the combination "other read device / LG burner" ... you can calculate the write offset out of the difference between "real" read offset correction and calculated combined read write offset ...

R + W = C

Then, you caluculate your LG's combined read/write offset by using that same test CD with your LG drive ... the now known write offset can be used to determine the "real" read offset.

I would not wonder if this drive shows +6 samples read offset correction and -6 samples write offset afterwards  ...

LG GCE-8520B

Reply #7 – 2003-04-19 05:31:58

Thanks!!

JeanLuc, one more reason I can't detect it is because this is the only drive I have.
But I think I can trust +6 for read offset correction afterall!

Tahnks again for all the replies!

LG GCE-8520B

Reply #8 – 2003-04-19 08:13:36

You still can take the CD to a friend (with a known drive) to determine the combined read offset correction there if the 52x LG is your only drive ...  ... just write down the results and you're set ...

LG GCE-8520B

Reply #9 – 2003-04-19 17:49:31

I read I could detect read/write combined offset corrections by doing rougly the following:

Extract from a pressed CD with read offset corrected at 0. Burn the tracks - using Nero in my case, that would be write offset corrected at 0 as well; then extract the tracks from this new CD and compare the WAVs.
Would this work out also for read/write offset detection (combined)?

I did that and the other thing using the EAC test offset CD. This is the result of the read offset detection:



But that would give me a write offset correction of -6??

LG GCE-8520B

Reply #10 – 2003-04-19 18:15:39

I don't think you can do that, as you have two unknowns - read offset and write offset.

LG GCE-8520B

Reply #11 – 2003-04-19 18:50:44

I read that at The Coaster Factory.. link.

The first method for the drives supported by EAC: the one of the screenshot above.
Im not sure if this burner is supported though.

And the second method that I did too, but here I have this problem:




Shouldn't EAC show the error as a number of samples?

I know the read offset correction yet. it is +6...

LG GCE-8520B

Reply #12 – 2003-04-22 22:10:19

Would anyone please teach me a way I can verify if the offset corrections are indeed correct for my drive?

I got a recommendation to use +6 correction for reading offset.
I then started EAC to write the sample CD and test it for the combined read/write offset correction. The value it returned was 0; the CD was written using 0 for write offset correction so I figure out the correct write offset correction for this drive would be -6.

now I know the combined and separate read/write offset corrections, is there any procedure I could use to make sure they are indeed correct?