EEPROM Utility for PLDS/LiteOn/Sony CD & DVD Writers (v5.0.1) *NEW*

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LiteOn / PLDS / Sony Writer Discuss, EEPROM Utility for PLDS/LiteOn/Sony CD & DVD Writers (v5.0.1) *NEW* at CD and DVD Writers forum; If one were to get a backed up eprom from someone, could they revive a dead drive. I have a dead 812, but no floppy.

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texascbx (CD Freaks Junior Member)
Posts: 59
Posted: 22-10-2004
If one were to get a backed up eprom from someone, could they revive a dead drive. I have a dead 812, but no floppy.
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Today (MyCE Staff)
Posts: 15,596
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40tacos (CD Freaks Member)
Posts: 152
Posted: 22-10-2004
Hi there,

Sure C0deking would rush to explain the real thing and give you the best advice

The EEPROM is unique for each unit, i.e. you should not replace your 812 eeprom with the eeprom of another 812 owner.

As far as I know, there is a fixed part of the EEPROM unique for your writer [really unchangeable], but there is another part [checksum] related to that part that would be replaced if you write the EEPROM content of ANOTHER unit. Then problem arise...

Knowledge is power, ....
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40tacos (CD Freaks Member)
Posts: 152
Posted: 22-10-2004
Quote:
Originally Posted by dhc014
General EEPROM related discussion has not been discouraged for a long time now. The only thing that we don't allow is for people to post requesting EEPROM dumps from others.
Good point. Thank you,
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thai_vn (New on Forum)
Posts: 17
Posted: 22-10-2004
@40tacos
Thanks for your reply in the other thread. Yes they're all burnt at 8x except the middle although CopytoDVD requested 8x writing but only 6x effective!!! i just updated to the newest ver 3.0.34 and the program reduced the speed to 6x compared to the others burnt at 8x with ver 3.0.32 with 8x effective. I guess that's why i got the better result? Any idea why the speed was reduced? something to do with the program (newer ver) or the EEPROM Utility (after resetting learnt media)? By the way i attach a scan of Taiyo Yuden DVD-R burnt @8x. is it a good burn? i havent seen a TYG02 scan before. Thanks
Attached Images
File Type: png TYG02.PNG (11.1 KB, 1017 views)
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thai_vn (New on Forum)
Posts: 17
Posted: 22-10-2004
This is my first time playing around with Codeguys' new EEPROM Utility. I can't believe what i've got!!! The best burn ever with a cheap media??? Anyone can beat that? Any comments? The media was written at 6x. I don't know why copytodvd can only burn this kind of media at 6x although it's a 8x certified media. ( 8x wrting requested but 6x effective). Anyway i'm happy with the result (much better than TYG02 above) though it was a bit slow @6x. Thanks Codeguys.
Attached Images
File Type: png GSC003@4X_8.PNG (10.3 KB, 991 views)
Hypnosis4U2NV's Avatar
Hypnosis4U2NV (CDFreaks Resident)
Posts: 1,464
Posted: 22-10-2004
Wow.. Thats some good scan with the cheap media that your using..

Ive found that burn quality varies with different types of burning software.. Ive gotten different results when using Nero, CloneDVD and others.. You should see how those do with the same media..

BTW: You may be able to achieve the 8x burn your looking for with other burning software..
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uknown1234 (CD Freaks Senior Member)
Posts: 458
Posted: 22-10-2004
Quote:
Originally Posted by C0deKing
The difference is that we are not encouraging people to play with there eeprom.
Quote:
Originally Posted by C0deKing
CodeGuys EEPROM Utility (v1.3.0)

Reset Learnt Media
This option will clear all of the learnt media calibration data and flush the four burn logs. This is similar to reloading an EEPROM file which has not burnt any media. Remember it may take two to four burns before optimum results are achieved after resetting the calibration data. If you already have good burns then this option is not for you.
Please correct me if I am wrong but isn't the above function encouraging in some way to play with the eeprom. The only difference about playing with the eeprom would be, using a utility instead of changing things manualy. Either way its still playing with the eeprom whether you are doing it manualy or not.
I only ask because its the best way to understand
ala42's Avatar
ala42 (MediaCodeSpeedEdit Author)
Posts: 4,723
Posted: 23-10-2004
Quote:
Originally Posted by 40tacos
The EEPROM is unique for each unit, i.e. you should not replace your 812 eeprom with the eeprom of another 812 owner.
Agreed.
Quote:
As far as I know, there is a fixed part of the EEPROM unique for your writer [really unchangeable], but there is another part [checksum] related to that part that would be replaced if you write the EEPROM content of ANOTHER unit. Then problem arise...
Well, the 'fixed' part, the first 64 bytes, is not really fixed, it can be changed. Right, the checksum depends on some bytes of that part. Omnipatcher crossflash option disables this check, so the checksum is not really a problem. The main problem is that nobody outside Liteon knows what these 64 bytes are used for.
Each drive has a (changeable) calibration area that is optimised for the drive specific OPU and analogue hardware. These values are unique for each drive, so taking these values from another drive usually makes no sense. Changing these values influences the write, but not the read behaviour of the drive.
Do not play around with your eeprom settings unless you know what you are doing or you can afford the total loss of your drive.
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jimmsta (New on Forum)
Posts: 23
Posted: 23-10-2004
hrm... now I wonder what the 411S@811S patcher really does... if it in fact modifies the unique portion of the eeprom, perhaps that's why so many people have problems with bad burns... who knows...
ala42's Avatar
ala42 (MediaCodeSpeedEdit Author)
Posts: 4,723
Posted: 23-10-2004
Quote:
Originally Posted by jimmsta
hrm... now I wonder what the 411S@811S patcher really does... if it in fact modifies the unique portion of the eeprom, perhaps that's why so many people have problems with bad burns... who knows...
The Z-Mod patcher adds data to the eeprom which was not available before because the 411 firmware did not use some eeprom addresses at all which were used by the 811 firmware. The missing data caused major problems especially on DVD-R media before. Z-Mod V4 uses the identical average calibration values gathered from a large amount of real 811 eeproms for each drive it is applied on. This approach works for drives which are close to the average, but will produce bad results for non average drives.
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TCAS (MyCE Resident)
Posts: 7,816
Posted: 23-10-2004
I have Lite-On 411S@811S patched with Zebra Mode 6 months ago so far has work as 811S flawlessly both +/_ Rs. I also burning majority of brand DVD disc 4X (+R) at 8X without any difficulty. Needless to say I have also speed hacked the drive with Codeguys.
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debro (Blown to smitherines)
Posts: 11,446
Posted: 23-10-2004
Quote:
Originally Posted by elfdood
careful you will go blind
/me @ 26 = still 20/20 vision
A little more playing couldn''t hurt
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debro (Blown to smitherines)
Posts: 11,446
Posted: 23-10-2004
Find below Scans of princos

After clearing the eeprom, I have much higher PI but lower PIF.

The first scan was burnt AFTER eeprom clearing
The second scan was an existing DVD-R burnt at 4x before eeprom clearing
Attached Images
File Type: png Princo_Clear_Eprom_812.PNG (12.1 KB, 928 views)
File Type: png Princo(Princo A-grade)_4xDVD-R(LDW811)_zoomed.PNG (12.2 KB, 927 views)
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vdk_au (CDFreaks Resident)
Posts: 738
Posted: 23-10-2004
why two different media brands, shouldn't u be comparing two of the same media?
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vdk_au (CDFreaks Resident)
Posts: 738
Posted: 23-10-2004
i just used the tool with my 812s@832s, can't wait till i burn one of my ritek G04's and see what's it like, i'll try and post one if i do.....
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professor_nova (CD Freaks Junior Member)
Posts: 68
Posted: 23-10-2004
Quote:
Originally Posted by debro
Find below Scans of princos

After clearing the eeprom, I have much higher PI but lower PIF.

The first scan was burnt AFTER eeprom clearing
The second scan was an existing DVD-R burnt at 4x before eeprom clearing
You can't compare the PIF values debro. They use different PIF sum ECC block. The princo graphic is using 1, the ricoh is using 8 (version 2.3.0 of Kprobe2 was using 8 and you couldn't change it).
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m0n5ter (New on Forum)
Posts: 6
Posted: 23-10-2004
I cannot get this to work on my "straight out of the box, never burned a disc yet" 1633S. When I try to backup firmware I get a 1k file, and omnipatcher says it is an "invalid .BIN size".
My current firware is BS06 if that makes a difference.
pinto2's Avatar
pinto2 (DVD Freak)
Posts: 7,545
Posted: 23-10-2004
Jeez, you are backing up EEPROM = 1kb. NOT the firmware!

Please read before you apply this tool , or even better don´t use the tool untill you know what you are doing.

lol.
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m0n5ter (New on Forum)
Posts: 6
Posted: 23-10-2004
Oops. Cheers. Just out of bed, jumped straight in. Not usually just as thick as this!!
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C0deKing (Senior Administrator)
Posts: 11,400
Posted: 24-10-2004
Quote:
Originally Posted by uknown1234
Please correct me if I am wrong but isn't the above function encouraging in some way to play with the eeprom. The only difference about playing with the eeprom would be, using a utility instead of changing things manualy. Either way its still playing with the eeprom whether you are doing it manualy or not.
I only ask because its the best way to understand
I appreciate your concerns but from many hours studying the firmware and eeprom images, we know that the areas, that we are changing, are safe to set to the values that we are changing them to. Also as we have provided a function to backup the eeprom first and then automated the reset learn process, there is little to no risk involved.
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pinto2 (DVD Freak)
Posts: 7,545
Posted: 24-10-2004
Yes, I´m sure you are right on that one.
When I put a word of warning above, I had "self modders" in mind.

But still, I think we have to make some kind of guide. Now there are two nice tools. One "too much".
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debro (Blown to smitherines)
Posts: 11,446
Posted: 24-10-2004
Apologies for above scan .... A little confusing, it was done a while ago, and I replaced the media before I saved the scan, back when i was batch scanning for another thread. [b]The scan WAS a princo[b]. Regardless to say, I have deleted the offensive file.

Find below, the series ranging from previous media, through to
1) Immediately after clearing eeprom (above) - 8x burnt
2) Second burnt after eeprom cleared - 8xburnt
3) Thrid burnt after eeprom cleared - 8xburnt
4) Fourth burnt after eeprom cleared - 8xBurnt
5) Immediately after clearing eeprom. - 4xBurnt

Previously burnt Princo Media.
Attached Images
File Type: png Princo(hico)_4xDVD-R(LDW811)_zoomed.PNG (13.0 KB, 829 views)
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debro's Avatar
debro (Blown to smitherines)
Posts: 11,446
Posted: 24-10-2004
2nd after clearing eeprom - Burnt at 8x
Attached Images
File Type: png Princo_Clear_Eprom+1_812.PNG (12.2 KB, 822 views)
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debro's Avatar
debro (Blown to smitherines)
Posts: 11,446
Posted: 24-10-2004
3rd after clearing Eeprom - burnt at 8x
Attached Images
File Type: png Princo_Clear_Eprom+2_812.PNG (11.9 KB, 819 views)
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debro's Avatar
debro (Blown to smitherines)
Posts: 11,446
Posted: 24-10-2004
4th after clearing EEprom - burnt at 8x
Attached Images
File Type: png Princo_Clear_Eprom+3_812.PNG (13.0 KB, 825 views)
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