ForumLG GSA-H22N detail information
| Posted by | agent009 |
| Posted on | 18/12/06 21:09 |
| Number of views | 84497 |
| Manufacturer | LG |
| Product | LG GSA-H22N |
| Description | 18x DVD burner Supports DVD-RAM |
DVD-RAM:
The LG GSA-H22N is a Super Multi DVD Rewriter, meaning that is fully supports reading and writing the DVD-RAM format.
DVD-RAM is a veteran among the three DVD formats. It is a ten-year old format, and it predates the DVD-R format by one year.
LG's Super Multi drives have played a significant role in spreading the use of the DVD-RAM format from camcorders and standalone devices to computers, by combining DVD-RAM support with DVD+R and DVD-R support, thus making DVD-RAM use possible without having a separate drive.
The DVD-RAM format is inherently more reliable than other DVD rewritable formats due to its superior error control, defect management, and the option of hardware-based data verification during writing.
DVD-RAM defect management provides data structures, stored on each disc, that allow unusable sectors to be relocated. It also allows the number of relocated sectors to grow over time, effectively reversing the negative effect of gradual media deterioration.
While DVD+R and DVD-R data track is spiral, DVD-RAM track layout is concentric, similar to that of a hard drive platter.
Looking at the recording side of a DVD-RAM disc, it is easy to notice that the data surface is very different from DVD+R and DVD-R discs. It has a fascinating pattern of small rectangles:
A DVD-RAM disc can be formatted in any of the following formats: FAT32, UDF 1.02, UDF 1.50, UDF 2.00, UDF 2.01, and UDF 2.50.
Many operating systems (Mac OS X, Windows XP, Windows Vista) support DVD-RAM formatting, reading and writing directly, without the need to install any additional drivers or software. Once a DVD-RAM disc is formatted, it acts like a removable hard drive and all writing is done in the background. This means that you do not have to wait for the drive to finish writing and can continue working with applications while the DVD-RAM drive is doing the burning.
Lets us take a look how the LG GSA-H22N works with DVD-RAM:
Maxell 12x DVD-RAM media, manufactured by Maxell
(Thanks to ExtremeMhz for providing this media)
Writing Maxell 12x DVD-RAM without verification
Writing Maxell 12x DVD-RAM with verification
Reading Maxell 12x DVD-RAM (transfer rate test)
As we can see, the LG GSA-H22N writes 12x DVD-RAM in 5 minutes and 42 seconds without verification, and reads back at 12x speed in 5 minutes and 34 seconds.
With verification, writing a full 4.27 GB DVD-RAM disc takes 14 minutes and 36 seconds.
Please note how turning on data verification has slowed writing speed from an average of 10.11x to 3.88x. This is due to the drive constantly reading back the data after writing it, to verify that it has been correctly stored. It is a slow writing technique but in combination with the defect management mechanism of DVD-RAM it is as close to "bullet proof", in terms of preventing data loss, as one can get with optical media.
Maxell5x DVD-RAM media, manufactured by Maxell
(Thanks to Maxell USA for providing this media)
Writing Maxell 5x DVD-RAM
Reading Maxell 5x DVD-RAM
As we can see, the LG GSA-H22N reads and writes a full 4.27 GB 5x DVD-RAM disc in approximately 12 minutes.
DVD+R DL/-R DL writing performance
i cannot burn a dvd multisession because i get "are you sure you want to burn multisession? any further session will not be recognized by your operating sistem" or something like this every time i want to start a multisession disc. if i select to continue i am able to write another session on the disc but this ruins it because it becomes somehow unreadable. can this be because the write mode is "disc at once" and not "track ar once"?
i tried to change it to track at once but the field for this option is not active so i can't
PLEASE help
Glad to see it isn't me! Excellent drive otherwise, reasonably quiet, extreemly fast and doesn't mind my dirt cheap no name disks.
earlier it used to write in 10 mins.
plz help me
lg gsa-h22n firmware update
LG GSA-H22N
favor enviarmelo al mi correo hectorgonzalez29@yahoo.com o decirme de donde lo puedo bajar
hgonzalez
POR FAVOR NECESITO QUE ME AYUDEN TENGO UN GRABADOR DE DVD MARCA LG MODELO gsa-h22n, y no me reconce los discos memorex dvd-r de 16x ya he instalado el firmware recomendado y sigue asi que puedo hacer por favor saludos kathy
puras mamadas con ustedes
I have one of this GSA-h22n Since February... The thing is, that two days ago I tried to burn a CD and the software (Ones) did not recognize the hardware... But, there's no problem at all to read a CD or DVD...
I try to fix it... and I re- installed the driver...but nothing's change...
Who knows what happend? Please, help me...
greeting from chile!
pam
It destroys DVD+RW media: I have new discs that are supposed to be good for 1000 re-writes but after 10 burns or less I started getting a message like, "this disc is nearing the end of its useful life." I have never seen this before in all my years of burning discs, and it does not happen when I burn these same discs in my BenQ. Also, I find that other drives have trouble reading DVD+R's that were burned with this LG. I replaced it with a Sony-NEC-Optiarc AD-7173A that seems to be much better. I will be very reluctant to ever get another LG. [And by the way, I did do the firmware update but it is very hard to find these updates on LG's website.]
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