LG GSA-4160B DL Recorder - Page 4
DVD Error Correction Tests
In the following tests we examine the DVD reading capabilities of the drive with
scratched / defective DVD media. For the tests we used CDVD Benchmark
and Nero CDSpeed. The reference test media comes from ALMEDIO.
- Single Layer media
This is a single sided, single layer DVD-ROM with 4.7GB capacity, and its
surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm.
The following transfer rate picture comes from the CDVD Benchmark v1.21 transfer rate test.
The drive can read DVD media up to 16X, which is fast enough
compared to the competition. The scratched area did not affect the reading
process and no errors were produced.
This is also a single sided, single layer DVD-ROM of 4.7GB
capacity. The data structure of the disc is exactly the same as that of the
TDR-821, with the difference that there are no scratches on it but instead
defective areas of dimensions ranging from 0.5 to 1.1 mm.
There are also fingerprints sized between 65 and 75 micrometers.
Same behavior with this test disc. No errors were reported and the drive
kept showing excellent DVD error correction capabilities.
- Dual Layer media
This is an 8.5GB dual layer, single sided DVD-ROM disc with artificial scratches
of dimensions ranging from 0.4 to 3.0mm, on both layers.
Again, no problem at all for the GSA-4160B. The disc was read as if there were no scratches at all.
The disc is a single sided, dual layer DVD-ROM disc with a capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes defective areas and fingerprints. The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micrometers.
Fantastic performance by LG. The GSA-4120B is known to be an excellent reader,
and as you can see above, the new GSA-4160B carries on this reputation.
The TDV-541 is a single sided, dual layer DVD-VIDEO disc, with a capacity
of 8.5GB.The disc is based upon the TDV-540 series which is designed for inspection
and adjustment of DVD-VIDEO players. The disc checks the layer switch operation
from layer 0 to layer 1 and also includes test pictures and test signals for
DVD sound files.
The current TDV-541 also checks the error correcting capabilities of the
drive and includes scratches from 0.4 to 3.0 mm.
The drive automatically reduced its reading speed to read the scratched area
on the media. However, no errors were reported and the reading process was
The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer DVD-VIDEO disc with a capacity of 8.5GB.
The TDV-545 includes artificial black dots on the disc's surface, sized
from 0.4 to 1.0 mm. It also has 65 - 75 micrometer thickness, fingerprints.
Perfect curve indicating good performance for this particular test.
The LG GSA-4160B has great DVD error correction capabilities.