LiteOn Media Learning for which media types?

Hi,

as far as I can tell the LiteOn DVD burners have a Media Learning function intended to improve burns after you have burned a few discs.

Is this Media Learning restricted to only DVD media, or does it also work for CD-R/RW media?

Does it work for all types of DVD media (+R, -R, +RW, -RW, +R9, -R9)?

In case it matters I have a SHW-1635S drive.

Thanks in advance!

Does anyone know the answer to this?

Try to send a PM to C0deKing to point his attention to this thread; maybe he have an answer :slight_smile:

Here’s a post I wrote some time ago but never got around to releasing. :wink: It’s been a while and I haven’t really looked at it much since. This post covered what I knew up to the 832S. The 5S can learn more media because it has a bigger EEPROM and a lot more space is allocated to the learn data but I haven’t checked out all the details in this firmware yet. :wink:

More about learning

Does the drive learn
There has been much discussion about the possibility that the LiteOn drive does learn and by now many of you will believe this is the case. I can now confirm that it definitely does but what is surprising, is it only does it for some media and not all. Only 31 +R codes are learned, 14 +RW, 13 -R codes and 13 -RW. Also all of the default strategies (media not in the media code list) are learned as well. All other media uses a default value stored in the strategy tables, which I believe, is adjusted by using information in the four burn logs. This means that media that does not learn, can take up to four burns to obtain optimum quality again, when other media has been burned, CD or DVD.

What does the drive learn
The drive learns a media calibration value for 4x and 8x. The 6x calibration value is calculated by using the 4x and 8x value. 2x and 2.4x don’t appear to be learned, which means that some of the media codes that can learn never do :confused:, unless they are overclocked by increasing the write speed with OmniPatcher. These values are stored in the EEPROM at offsets relative to the media code index.

Default strategy
Just one learn value for all unknown media codes of each media type (+R/W, -R/W) are learned, which means the first few burns could be rather poor, especially if you have been using a different media code in the past, that used the default strategy as well.

Mixing batches of the same media code
Make sure you use the same batch of media and that you don’t alternate between two batches or brands of the same media code. For example Imation R01 and Sony R01. My experience is that both of these media’s require a different media calibration value. So it is not a good idea to swap between media brands. Use up one and then switch to the other. This will also apply to different batches of the same brand as well.

Strategy switching
Caution should be taken with media switching to the same strategy and then burning different media types with the same strategy. If you switch, for example, PRODISCR02 to R03, the learn calibration data is stored in the R03’s position. The drive will adjust the media calibration value for the R02 media and this will more than likely not be correct for the R03 media using the same strategy, or any other media switched to this strategy. Remember strategies and Media codes are linked. Switching strategies is switching media codes. Also strategy switching to codes that learn makes more sense then to codes that don’t. Tends to help cut down the number of choices. :wink: Remember that while you are searching for the best strategy for your media, every switch you try, to media that learns, leave a calibration value in that media’s index which may be completely wrong for the true media of this type. Once a calibration value has been set the first time it seem to only allow it to be adjusted in very small steps. So it may take quite a few burns for the true media of this type to come right. That’s where the CodeGuys’ EEPROM Utility reset learn can help. See below.

Firmware upgrading
1213S users upgrading to the 1633S firmware should use the “Reset Learned Media” feature in the EEPROM Utility (see below). This is because the media code indices for the 1633S are completely different to the 1213S and previous learn data will affect the wrong media. The same applies when flashing back to 1213S. Previous models do not have the same problem, as LiteOn retained the same media at the same indices (411S-811S, 451S-851S-812S-832S).

Like the drive, I am still learning about this as well. If I find out any more, I will make additional posts here, so make sure you subscribe to this thread. :wink:

Also see the CodeGuys’ EEPROM Utility in this [thread=112103]thread[/thread] with Backup, Restore and Reset Media Learn functions.

451S/851S/812S/832S media codes that are capable of learning:
DVD+R


MCC     /001/00  [ 2.4x             ]
MCC     /002/00  [ 2.4x, 4x         ]
YUDEN000/T01/01  [ 2.4x, 4x         ]
YUDEN000/T02/00  [ 2.4x, 4x, 6x, 8x ]
MCC     /003/00  [ 2.4x, 4x, 6x, 8x ]
RICOHJPN/R02/03  [ 2.4x, 4x, 6x, 8x ]
RITEK   /R03/01  [ 2.4x, 4x, 6x, 8x ]
CMC MAG /E01/00  [ 2.4x, 4x, 6x, 8x ]
PRODISC /R03/00  [ 2.4x, 4x, 6x, 8x ]
SONY    /D11/00  [ 2.4x, 4x, 6x, 8x ]
Philips /081/00  [ 2.4x, 4x, 6x, 8x ]
CMC MAG /F01/01  [ 2.4x, 4x, 6x, 8x ]
MAXELL  /002/00  [ 2.4x, 4x, 6x, 8x ]
BeAll000/P80/00  [ 2.4x, 4x         ]
RITEK   /R03/02  [ 2.4x, 4x, 6x, 8x ]
AML     /002/00  [ 2.4x, 4x, 6x, 8x ]
MUST    /002/01  [ 2.4x, 4x, 6x, 8x ]
NANYA   /CHX/00  [ 2.4x, 4x, 6x, 8x ]
PHILIPS /C08/00  [ 2.4x, 4x, 6x, 8x ]
OPTODISC/OR8/00  [ 2.4x, 4x, 6x, 8x ]
DAXON   /AZ2/00  [ 2.4x, 4x, 6x, 8x ]
ISSM    /001/00  [ 2.4x, 4x, 6x, 8x ]
RICOHJPN/R01/02  [ 2.4x, 4x, 6x, 8x ]
MAXELL  /001/00  [ 2.4x, 4x         ]
PRODISC /R02/00  [ 2.4x, 4x         ]
TDK     /001/00  [ 2.4x, 4x         ]
BeAll000/P40/00  [ 2.4x             ]
SONY    /D01/00  [ 2.4x, 4x         ]
NANYA   /DR /00  [ 2.4x             ]
RITEK   /R02/01  [ 2.4x, 4x         ]
DAXON   /AZ1/00  [ 2.4x, 4x         ]

DVD+RW


MCC     /A01/00  [ 2.4x     ]
RITEK   /001/01  [ 2.4x     ]
MKM     /A02/00  [ 2.4x, 4x ]
CMC MAG /W01/00  [ 2.4x     ]
NANYASC /DRW/00  [ 2.4x     ]
RICOHJPN/W11/01  [ 2.4x, 4x ]
OPTODISC/OP1/00  [ 2.4x     ]
PRODISC /W01/00  [ 2.4x     ]
INFODISC/A01/00  [ 2.4x     ]
RITEK   /004/30  [ 2.4x, 4x ]
RITEK   /W04/00  [ 2.4x, 4x ]
CMC MAG /W02/00  [ 2.4x, 4x ]
PHILIPS /041/00  [ 2.4x, 4x ]
SONY    /S11/00  [ 2.4x, 4x ]

DVD-R


SONY08D1    /52  [   2x, 4x, 6x, 8x ]
TYG02       /52  [   2x, 4x, 6x, 8x ]
MCC 02RG20  /52  [   2x, 4x, 6x, 8x ]
MXL RG03    /52  [   2x, 4x, 6x, 8x ]
GSC003      /52  [   2x, 4x, 6x, 8x ]
CMC MAG. AE1/52  [       4x, 6x, 8x ]
ProdiscS04  /52  [   2x, 4x, 6x, 8x ]
RITEKG05    /52  [       4x, 6x, 8x ]
ProdiscF01  /52  [   2x, 4x, 6x, 8x ]
TTG02       /52  [   2x, 4x, 6x, 8x ]
PRINCO8X01  /52  [   2x, 4x, 6x, 8x ]
FUJIFILM03  /52  [   2x, 4x, 6x, 8x ]
RITEKG06    /52  [   2x, 4x, 6x, 8x ]

DVD-RW


RITEK000V11A/00  [ 1x         ]
RITEKW01    /00  [     2x     ]
CMCW02      /00  [     2x     ]
PRINCO      /20  [ 1x         ]
PRINCO      /21  [     2x     ]
ProdiscDVDRW/00  [ 1x         ]
OPTODISCK001/20  [ 1x         ]
MCC 00RW11N9/00  [ 1x         ]
PVCW00V00245/00  [ 1x, 2x     ]
TDK502sakuM3/00  [     2x     ]
JVC_VictorW7/00  [     2x     ]
OPTODISCK001/21  [     2x     ]
RITEKW04    /00  [     2x, 4x ]
MCC 01RW11n9/00  [     2x     ]

411S/811S media codes that are capable of learning:
DVD+R


MCC     /001/00  [ 2.4x             ]
MCC     /002/00  [ 2.4x, 4x, 6x, 8x ]
CMC MAG /R01/00  [ 2.4x             ]
YUDEN000/T01/00  [ 2.4x, 4x         ]
RITEK   /R01/00  [ 2.4x             ]
PRODISC /R01/00  [ 2.4x             ]
RICOHJPN/R01/02  [ 2.4x, 4x, 6x, 8x ]
MAXELL  /001/00  [ 2.4x, 4x         ]
PRODISC /R02/00  [ 2.4x, 4x         ]
TDK     /001/00  [ 2.4x, 4x         ]
BeAll000/P40/00  [ 2.4x, 4x         ]
SONY    /D01/00  [ 2.4x, 4x         ]
NANYA   /DR /00  [ 2.4x             ]
RITEK   /R02/01  [ 2.4x, 4x         ]
DAXON   /AZ1/00  [ 2.4x, 4x         ]
CMC MAG /F01/00  [ 2.4x, 4x         ]
OPTODISC/OP1/00  [ 2.4x             ]
MPOMEDIA/001/00  [ 2.4x             ]
LD      /001/00  [ 2.4x             ]
SKYMEDIA/R01/00  [ 2.4x             ]
OPTODISC/OR4/00  [ 2.4x, 4x         ]
MPOMEDIA/040/00  [ 2.4x, 4x         ]
YUDEN000/T01/01  [ 2.4x, 4x, 6x, 8x ]
YUDEN000/T02/00  [ 2.4x, 4x, 6x, 8x ]
MCC     /003/00  [ 2.4x, 4x, 6x, 8x ]
RICOHJPN/R02/03  [ 2.4x, 4x, 6x, 8x ]
RITEK   /R03/01  [ 2.4x, 4x, 6x, 8x ]
CMC MAG /E01/00  [ 2.4x, 4x, 6x, 8x ]
PRODISC /R03/00  [ 2.4x, 4x, 6x, 8x ]
SONY    /D11/00  [ 2.4x, 4x, 6x, 8x ]
NANYA   /RJB/00  [ 2.4x, 4x         ]

DVD-R


PVC001001   /00  [   2x     ]
TAIYOYUDEN  /00  [   2x     ]
SONY        /50  [   2x     ]
CMC MAG.    /50  [   2x     ]
PRODISCG02  /50  [   2x     ]
MBI         /50  [   2x     ]
OPTODISCK001/50  [   2x     ]
MCC 01RG20  /52  [   2x, 4x ]
PVCR001002  /52  [   2x, 4x ]
TYG01       /52  [   2x, 4x ]
RITEKG04    /52  [   2x, 4x ]
ProdiscS03  /52  [   2x, 4x ]
CMC MAG. AF1/52  [   2x, 4x ]

DVD+RW


MCC     /A01/00  [ 2.4x     ]
RITEK   /001/01  [ 2.4x     ]
MKM     /A02/00  [ 2.4x, 4x ]
CMC MAG /W01/00  [ 2.4x     ]
NANYASC /DRW/00  [ 2.4x     ]
RICOHJPN/W11/01  [ 2.4x, 4x ]
OPTODISC/OP1/00  [ 2.4x     ]
PRODISC /W01/00  [ 2.4x     ]
INFODISC/A01/00  [ 2.4x     ]
RITEK   /004/30  [ 2.4x, 4x ]
RITEK   /W04/00  [ 2.4x, 4x ]
CMC MAG /W02/00  [ 2.4x, 4x ]
PHILIPS /041/00  [ 2.4x, 4x ]
SONY    /S11/00  [ 2.4x, 4x ]

DVD-RW


RITEK000V11A/00  [ 1x     ]
RITEKW01    /00  [     2x ]
CMCW02      /00  [     2x ]
PRINCO      /20  [ 1x     ]
PRINCO      /21  [     2x ]
ProdiscDVDRW/00  [ 1x     ]
OPTODISCK001/20  [ 1x     ]
MCC 00RW11N9/00  [ 1x     ]
PVCW00V00245/00  [     2x ]
TDK502sakuM3/00  [     2x ]
JVC_VictorW7/00  [     2x ]
OPTODISCK001/21  [     2x ]
RITEKW04    /00  [        ]
MCC 01RW11n9/00  [     2x ]

very informative! Thank you!
Should be a sticky!

Thanks for your elaborate answer, C0deKing! :slight_smile:

that was so thorough that I had to bookmark it, CodeKing. :iagree:

Cheers C0deKing, I was wondering about this as well - so thanks also to DrageMester for asking about it! :slight_smile:

Only 165p6s/160p6s or newer models would have learning function for dvd±r/dl disc.

Wind, what is your reason for thinking that?

C0deKing,

I very thank you for what you have done for LiteOn. That’s why I am telling you that.
So, please believe this stanger. I don’t know if I can tell you more about that.

Thanks Wind. I do believe you and I appreciate it. :slight_smile:

Please refer to the LITEON burner in my stats below…

I just returned a 100pk of sony minus r’s 8X purchased at best buy cause I heard sony’s media overall isnt too hot…

I then purchased 2 50pks of Verbatim minus r’s 16X also at best buy cause I heard better success stories in general and that its a very reliable media (of course TY is usually the best)…

I’m just not sure what “brand/media code” I should use for the Liteon 1633-S BS0Y firmware :-. Im afraid to open these Verbatims if the drive doesnt support it or has had bad burns with these discs :-.

Also, it seems this drive supports +r’s a lot more…I very rarely use +r cause without booktyping to dvd-rom…its not compatible with SOME dvd players where as -R seems to be compatible with all. Does this drive even support booktyping?

If the mediacode of those Verbatims is MCC 03RG20-00 then BS0Y supports them with 4x, 6x and 8x. And yes, your drive supports booktype setting for +R media (-R media cannot be booktyped). Use the LiteOn tool version 1.35, once changed the setting is stored in the EEPROM and will be used by default. In my drive it’s the default setting for almost a year now.

:iagree: Leo

Thanks, any idea in terms of quality of burns with the dvd-r 16x verbatims though with my drive? Is it worth going with this or TY/something else? Any suggestions whether or not to go +r or -r with the verbatims?

Don’t expect these drives to write properly at high speeds. So I would not write them over 8x. And to be honest, I always write video-dvd’s at 4x, to keep my very picky standalone dvd-player happy. As you can see in my sig, I crossflashed the drive to CS0T (mainly because it supports more media), and I’m happy with the results.
The only Verbatims I used were MCC 01RG20, the 4 speed version -R. They were surprisingly good. I also used about 20 dvd’s with almost the same mediacode (MBI 01RG20) from India and they were good either. From TY I tried some 4x +R disks (Maxell branded, made in Japan) and they’re fine too. As I normally use +R, I’d go for TY. Considering the fact that I never will be burning at 16 speed, I will not bye expensive 16x media unless I’m forced to do that. Most media offered in shops now here in Holland is 8x.
Verbatim and TY are certainly good choises. I don’t think you will notice much difference between them in terms of quality. Try it out, make some quality scans (KProbe or Nero cd-dvd speed) and let us know the results.

:slight_smile: Leo

Should I bother upgrade the firmware from BS0Y to CS0T cd/mcled? Isnt this firmware not supported by/made by LiteOn? Is this risky/could possibly screw up my drive?

Crossflashing is not riskier than normal flashing, you just have to take care flashing the right drive. And you can go back to previous state if you backup your EEPROM first. Firmware is made by LiteOn, but modified by C0deKing to enable crossflashing. It’s not supported by LiteOn, and technically crossflashing voids your warranty (if you have left any). It’s up to you to decide. BS0Y is not bad either.
If you try it, use the patched version (cf/mcled).

:cool: Leo