Lite-On LH-18A1P - Post your scans here

Firmware GL0F
Verbatim CD-R 52x (Taiyo Yuden, 700MB, Type 1, Cyanine Dye)
as sold by Verbatim
Burn speed at 48x
SB - on
HT, OHT, OS - off

Scan in 181AP and PX-755 (1907 C1 errors)

This burn was done with the same settings as HWP see post #391#
Is it a good burn

Firmware GL0F
Taiyo Yuden DVD-R 16x (TYG03), as sold by Panasonic
Burn speed at 16x
SB -on
HT, OHT, OS - off

Yep, but only @ 4x.

Save as a .png file.

Verbatim 16X +R 50 pc. White Hub-printable
Nice burner/external enclosure combination (Plumax with Oxford 911+) easily achieves 16X burns
Burn time with Nero 5:52

to many PIF total imho

Poor spelling and punctuation. Imho.

Verbatim DL 2.4X +R burned @ 4X with ImgBurn
White Hub-Printable 20 pc. Cakebox
I'm starting to like this $30 burner more and more

Sony SONY16D1, 16x branded, HT/OS/OHT off, burned at 18x

20A1H@18A1P firewire external enclosure. This enclosure tops out at 16.5x but it's good to see the H and P hardware appears to be the same except for the Lightscribe indexing.

Scan 1:

C1/C2/CU Scan in a Plextor Premium 2 of the Verbatim disk as burned here:
http://club.cdfreaks.com/showpost.ph...&postcount=400
341098 C1 errors
133 C2 errors

Scan 2:

C1/C2/CU Scan in a Plextor Premium 2 of the Taiyo Yuden disk as burned here:
http://club.cdfreaks.com/showpost.ph...&postcount=401
20839 C1 errors
no C2 errors

Scan 3 and 4:

Readback in the Premium2 of the Verbatim and the Yuden.

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Last edited by hwp; 13-01-2007 at 19:04.

FYI:

Difference between two LiteOn LH-18A1P:

LH-181P - #1 - OEM - (NewEgg $29.99 - Nov 03, 2006)
- LH-18A1P185C
- Date: Sept 06
- FW: GL0B
- Made in China

LH-181P - #2 - RETAIL - (Central Comp $39.99 - Jan 13, 2007)
- LH-18A1P186C
- Date: Nov 2006
- FW: GL0C
- Made in China

Appears there is a different spindle motor
- Nov 2006 unit is much quieter than older Sept 2006 build

Pictures:
http://premium1.uploadit.org/bichi00...8A1P-TOT-2.jpg

Thanks bichi. Wow, big difference!

FYI, GL0F has some significant improvements in burn quality.

LH-181P; GL0F; All On
Verbatim - MCC004 +R x16 @ x18
- build Nov 2006

- first burn, after installing GL0F and misc set-up stuff

CodeKing:
- yeah, GL0F looks like a very nice improvement!

Whoot! Brilliant burn bichi.

I agree with this. At least with good quality media burning has become good, as of GL0F.

LH-181P; GL0F; All On; +R set to ROM
MEMOREX - RITEK F1 -R x16 @ x18
- Build Nov 2006

- low end media
- burned with good ol' RecordNow Max v4.61

Thanks a lot for the pictures, bichi! Encouraged by what I'm seeing here recently, I picked up a November GL0C with high hopes and it still resonates like my previous September GL03 did. And guess what, the spindle motor is the same one you're showing for the September unit! It burns like crap as well, with high errors at the beginning (much like Ssseth's 20A1H - see my scans attached, second burn of each MID). I'm starting to think these are being made in two different locations, so it's not the date of manufacture, but the origin that counts. The shop where I bought it has both September and November boxes, so they could be from the same lot/shipment. Mine's a retail LH-18A1P487C Made in China with S/N 23364640xxxx. It seems to smoothen out after a couple hours use and warming up (the same disc that was loud at first can become quiet), but this is just not good enough. Lite-On/BenQ has got me ticked-off really well now - just another example of a corporate cock-up for me.

Do both drives vibrate when spinning at high speed or just the older one ? I have tested (and heared) two October MIC LH-18A1P488C drives. On both drives the drive case vibrated, they were loud and I could modify the noice frequency by touching the case. Installed one in my PC, the drive is quieter now and the PC vibrates a bit when the drive is spinning. Needless to say that the same disks in my Benq 1620 and 1640 drives do not vibrate at all.

Cressida,
- good info! Agreed, it might be related to part numbers and country, than date, eh?

ala42,
- difficult to quantify, but did a quick, unscientific noise measurement with db meter, set to "A" weighting
- CDSpeed v4.5, benchmark test
- PN: LH-18A1P186C; Nov 2006
- same disk used for tests to negate "balance" differences
- sensor placed at two locations:

a) 1 inch/2.5cm in front of drives
- baseline: 58dbA
- LH-18A1P: 67dba
- 165P6S: 66dba
("hissing" noise, rather than lower freq "growling")

b) touching middle of case, side (to get mechanical coupling for low frequencies)
- baseline: 57dba
- LH-18A1P: 67dba
- 165P6S: 61dba
(lower freq, "growling/vibration" type noise)

- repeating: not a proper test, would need a vibration measuring tool at these frequencies
- older Sept 2006 unit is not installed
- in my instance, my case is an old, circa 1990, heavy, steel/aluminium case and has very low resonance
- could see how newer, thinner, lighter cases with less mass, plastic fronts, etc., could resonate and sound louder
- link to case pictures: http://www.esnips.com/web/ConroeReady

Attached picture of LH-18A1P compared to older LTN-1693
- anti-vibration mounting changed, where LH-18A1P's PUH/motor plate floats with much less restriction than older, LTN-1693 mounting.
(note LH-18A1P, no capture screws on "green" donuts)
- note additional "mass," which appears to be added as a counter-weight, on older 1693
- guessing less restrictive mounting and lighter weight is causing more low freq vibration?
- note more motor control lines (11 compared to 4) and guessing more motor poles (not shown)
- also guessing faster acceleration and less noise with more motor poles on older 1693?
- less motor poles, no counterweight = less cost.....
- pic: http://premium1.uploadit.org/bichi00...ntdiff-001.jpg

(you guys are making me work too hard....)

ESA branded CMC E01 @ 8x.

Great burn jhtalisman, I used to have a few 50 packs of those ESA's they were great while they lasted.

First burn with this drive resulted in a write error from Nero 7
Burn quality seems bit better than NEC 4550a

Drive: LH-18A1P
Firmware: GL0F
Settings: SB On ;HT off; OS off
Software: Nero 7.5.9.0
Speed: 16x@16x

Media: Maxell DVD+R 16x printable (MAXELL003)

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Last edited by waslijn; 17-01-2007 at 21:51.

Drive: LH-18A1P
Firmware: GL0F
Settings: SB On ;HT off; OS off
Software: Nero 7.5.9.0
Speed: 16x@16x

Media: Verbatim DVD+R 16x printable (MCC004) - Made in Taiwan

18A1P->20A1P KL05 firmware

Taiyo Yuden DVD+R 16X unbranded burnt @ 12x SB: on, all other options OFF.

Prior to that i have done a transfer rate test and jitter but did not save results. TRT was a smooth curve - Jitter was steady at 10 % all the way, I'm used to 7.5%-8%, but I guess this is because of 12x burns. Those burn much better than my 8x DVD+R TY, I guess I was right all along TY is concentrating on 16x media now, the 8x media has gone down in quality. I consider tis an excellent burn @ 12x - I expected much higher PIF totals at that burn speed, but it's great.

TDK DVD+R 16x @ 18x
Fw: GL0F
Drive - LH-18A1P 483C, September 06
SB, HT, OHT - on, OS - off

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Last edited by NewFish; 23-05-2008 at 01:12.

FW GL0F

Verbatim 16x DVD+R MCC 004
Burnt At 18x
HT,OHT & OS ON