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| Posted by | Jan S. |
| Posted on | 19/09/06 21:04 |
| Number of views | 54374 |
DVD-RAM:
The Samsung SH-S182D is a so-called Multi Recorder, meaning it also supports the DVD-RAM format.
This drive is one of few drives that also supports the DVD-RAM format, lets us look at the recording side of the disc, and as you can see it has differences from the other DVD+R/W/R9 DL and DVD-R/W discs.
We can see a very fascinating pattern of darker spots. These tick marks are "address information" ("Pre-mastered Pit Header Field") which are embedded onto the disc. This is header information in front of data sector area, and is the same format as HDD and MO.
A DVD-RAM's disc can be formatted in the following formats:
- FAT32
- UDF 1.02
- UDF 1.50
- UDF 2.00
- UDF 2.01
- UDF 2.50
By formatting a DVD-RAM disc with FAT32 it will act like a removable hard drive and all writing will be done as 'background processes". Meaning you do not have to wait for it to finish, you can start or work with other applications while the DVD-RAM is working without noticing any 'hangs" or CPU slowdowns.
Lets us take a look at the media we are going to use in these tests:
Maxell branded 12x media manufactured by Maxell
Verbatim 5x media manufactured by
Matsushita
As we can see, the Maxell media is rated at 12x and the Panasonic media is rated at 5x.
Now let's see how DVD-RAM media is written and read by the Samsung SH-S182D.
Maxell 12x media written at 12x without verification
Maxell 12x media written at 10x without verification
Maxell 12x media written at 8x without verification
Maxell 12x media written at 6x without verification
Verbatim 5x without verification
Verbatim 5x with verification
For those of you who are not familiar with DVD-RAM, you may probably think that something went wrong during the write process with the verification turned on, since the 5x media was written at 2x. But not to worry, that is pretty normal for DVD-RAM discs, the reason for the 'low" speed is, the drive constantly reads back the data after writing it to verify that it's written correctly. We can also call it a 'bullet proof" writing/verify technique, with no data loss/errors.
DVD-RAM has error correction, but also has error replacement to spare sectors as a "defect management" function. This gives higher reliability than other DVD format.
Another advantage with DVD-RAM is that the discs can be formatted/erased/written at over 100.000 times before it will/can cause/report any errors. Let's try to read back the 2 discs that we wrote:
Maxell DVD-RAM
Verbatim DVD-RAM
As we can see, the Samsung SH-S162S also reads DVD-RAM using a fast P-CAV/CLV reading method, but reads the disc at its rated write speed, meaning our 5x media was read at 5x and our 12x media was read at 12x. The Samsung SH-S182D had no problems in reading our two test discs.
EDITORS NOTE:
The rather shaky read back curve for 12x DVD-RAM media was fixed in firmware version SB03:
Before we round off this review, let us run the drive through some advanced tests at next page…
DVD+R DL/-R DL Writing performance
I have this Samsung product and I'm dealing with a serious problem:
One of the features listed is: "The Samsung SH-S182D supports bit-setting, and is capable of writing DVD+R, DVD+RW and DVD+R DL media with DVD-ROM book type."
Well, the one I have in my computer CAN'T do this!!!
I open Nero Burning ROM, go to "Choose recorder", as it is shown in this review, and for my surprise the option "Book type settings" at the bottom of the dialog box DOESN'T EXIST!
Only the optons "Super link enabled" and "DVD high compatibility mode" are there! How is this possible?
If someone here have any ideas about my problem, I'd be very glad! Just e-mail me: danielcl_colorado@yahoo.com.br.
Thanks!
have same writer does anydody know why DL discS are showing as CDs.....tried 3 different makes of discs no joyI am just curious why it causes the hard drive LED to light up continuously when watching a DVD movie. My previous Lite-On didn't cause the hard drive LED to light up at all.
The movie plays fine though. Anyone know why this is? Thanks in advance.
Any ideas???
Advises are appreciated.
An
"Posted by ragnar (guest) on Saturday 22 March 2008 23:17
I have the same problem. I bought 3 of this type SH-S182D, from one provider. It reads nice, but always burns DVD`s very slow. It`s stable after upgraded firmware to SB04. But it always takes 1 hour and 8m to burn a dvd. Have tried both +/- different machines, Linux/XP, DMA, 80 conductor cables, etc. So now I don`t know what to do. Maybe drop Samsung and buy other brand? Or maybe its my PC`s?"
I didn`t know about the firmware upgrade SB06, I thought the SB04 was the newest. I upgraded firmware from S04 to S06. And that fixed the problem!!! I now burn a DVD 4574510KB (4468GB) in 8min 47sec!!!! Finally!
Here is the link to the firmware upgrade file SB06:
http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=us&CttFileID=1528503&CDCttType=FM&ModelType=N&ModelName=SH-S182D&VPath=FM/200706/20070622093010250_SH-S182D_SB06.zip
Or click here for page:
http://www.samsung.com/us/support/download/supportDownDetail.do?group=computersperipherals&type=opticaldiscdrives&subtype=dvdwriter&model_nm=SH-S182D&language=&cate_type=all&mType=FM&dType=D&vType=R&cttID=1528503&prd_ia_cd=05050500&disp_nm=SH-S182D
Good luck with your Samsung product!
just upgraded the firmwae from SB04 to SB06
theve changed the method of upgrading firmware, unfortunately the batch of softwares they used to have for this drive have been removed from their site.
they were pretty usefull, like disk speed adjuster and stuff
Iv just recently encounted defection on my drive, probably due to neglecting the button and slamming the tray shut all the time.
so now it pops the disk out randomly.
abotu ppl getting the they insert as CD, if u are using nero adn is your 1st time, sellect the drive as TSST corp SH-S182D
when selecting to burn, on the bottom right corner sellect the size of ur disk, dvd5 or 9
usualy nero 8 detects this automaticaly
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