ForumLG GSA-H50N detail information
| Posted by | agent009 |
| Posted on | 18/07/07 07:51 |
| Manufacturer | LG |
| Product | LG GSA-H50N |
| Description | 18x Super Multi DVD Rewriter |
DVD reading performance
In the tests below, we will explore DVD reading capabilities and performance of LG GSA-H50N. We will use Nero CD-DVD Speed to read various types of DVDs.
Summary
The following table lists reading speeds and strategies used by LG GSA-H50N when reading DVD media:
Some of these strategies are presented below.
DVD-ROM
LG GSA-H50N reads DVD-ROM at 7x-16x CAV (Constant Angular Velocity) speed.
With a pressed DVD-ROM data disc, about 2.7 GB in length, average speed is 10.29x and read time is 3 minutes and 29 seconds:
DVD-ROM reading
DVD-Video (DVD-5)
While only 1x speed is required to watch movies stored on DVD-Video discs, it is useful to be able to read the discs at higher speeds when extracting the content of the disc to a hard drive.
LG GSA-H50N reads single-layer DVD-Video at 7x-16x CAV (Constant Angular Velocity) speed.
With a pressed single-layer DVD-Video data disc, about 4.3 GB in length, average speed is 6.08x and read time is 9 minutes and 43 seconds:
DVD-Video (DVD-5) reading
DVD-Video DL (DVD-9)
LG GSA-H50N reads double-layer DVD-Video at 5x-12x CAV (Constant Angular Velocity) speed.
With a pressed double-layer DVD-Video data disc, about 7.8 GB in length, average speed is 5.98x and read time is 17 minutes and 41 seconds:
DVD-Video DL (DVD-9) reading
DVD+R
LG GSA-H50N reads DVD+R at 7x-16x CAV (Constant Angular Velocity) speed.
Average speed is 11.99x and read time is 4 minutes and 59 seconds:
DVD+R reading
DVD+RW
LG GSA-H50N reads DVD+RW at 5x-12x CAV (Constant Angular Velocity) speed.
Average speed is 9.10x and read time is 6 minutes and 34 seconds:
DVD+RW reading
DVD+R DL
LG GSA-H50N reads DVD+R DL at 5x-12x CAV (Constant Angular Velocity) speed.
Average speed is 9.07x and read time is 11 minutes and 56 seconds:
DVD+R DL reading
DVD-R
LG GSA-H50N reads DVD-R at 7x-16x CAV (Constant Angular Velocity) speed.
Average speed is 11.98x and read time is 4 minutes and 59 seconds:
DVD-R reading
DVD-RW
LG GSA-H50N reads DVD-RW at 5x-12x CAV (Constant Angular Velocity) speed.
Average speed is 9.10x and read time is 6 minutes and 34 seconds:
DVD-RW reading
DVD-R DL
LG GSA-H50N reads DVD-R DL at 5x-12x CAV (Constant Angular Velocity) speed.
Average speed is 9.08x and read time is 11 minutes and 55 seconds:
DVD-R DL reading
DVD-RAM
LG GSA-H50N reads 12x DVD-RAM at 6x-12x Z-CLV (Zone-Constant Linear Velocity).
Average speed is 10.23x and read time is 5 minutes and 36 seconds:
DVD-RAM reading
CD reading performance
One thing I would advise against is using any LG drive for TRT. Those drives have no problems with extremely poor burns. I have had a severely degraded Ritek G05 that would not read at all in any of my liteons, I put it in my LG and it did not slow down once during the rip. I've noticed this on a number of poorly burnt discs in the past and I have two LG drives to confirm that they are very good readers, too good when it comes to TRT.
This message was edited at: 22-07-2007 08:05
Many things besides the quality of the disc can go wrong at high reading speeds. 16x DVD speeds mean interpreting 56 meters/180 feet per second of track covered with microscopic bumps. It makes me think of reading highway signs written in Braille - at supersonic speeds
The whole thing is a bit of a black art... a reading test can show a hint of a problem where the quality test sees none, and vice versa. The best we can do is to pick one reading drive for a review and stick with it until there is an apparent contradiction between a quality test and a reading test, as was the case here.
O meu dvd não abriu o computador e não roda nada!!!
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