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Home > Hardware Reviews > Optical Storage

Saturday, March 24, 2007
LITE-ON DVDRW SH-16A7S

2. CD - DVD Reading

For our CD transfer rate tests, we used the Nero CD-Speed utility and a set of Pressed CDs. The drive can read CD media at a maximum speed of 48X. For reference, we present a comparison of the LiteOn DVDRW drive with the Plextor PX-760A, Memorex 525GE and Samsung SH S182D drives.

Pressed CD

Press for Larger Picture

With a 48X maximum reading speed for CD-R/ROM media, the LiteOn drive is among the fastest in this task.

US RW CD

The following CD Speed graph shows the reading performance with US-RW media. For all the CDSpeed graphs, you can click on the image to see the full CDspeed snapshot.

Press for Larger Picture

- AudioCD

In the CD Speed Advanced DAE quality test, the drive's average speed was 33.17X with a quality score of 100.

A typical DAE task with an 80min non-protected Audio CD produced a 33.7X average ripping speed.


- 90/99 mins Audio disc

Both the 90min and the 99 min audio CD readings returned an error, as you can see in the screenshots above.

- DVD Format

Now let's have a look at how the drive performs with DVD media. This time, a set of SL and DL DVD media was used. The drive is capable of reading at 12X maximum speed for single layer and at 8X for dual layer media.

DVD-ROM SL media -

PTP DVD-ROM -

The two layers of a PTP DVD-ROM disc are read sequentially with the drive starting reading from the inner part of the disc, which is the beginning of each layer, progressing towards its outer range.

OTP DVD-ROM -

The first layer of an OTP dual layer DVD-ROM is read exactly the same way as the first layer of the PTP disc we tested previously. The difference here is the reading strategy of the second layer of the disc. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks and progresses towards the inner part of the disc.

- DVD-R /-RW

A 16X CAV reading strategy for DVD-R and DVD-RW media:

- DVD+R /+RW

- DVD+R DL

-DVD-R DL

-DVD-RAM

The drive had some problems reading Maxell's DVD-RAM disc we used in our test. In addition to the speed glitches in the transfer rate graph, the full seek time result is also increased.

- DVD Ripping speed.

Average - 11.632 KB/S (8.4x)
Maximum - 17.285 KB/s (12.5x)

The test was performed with a DVD-9 commercial DVD Video title. The ripping speed wit the LiteOn drive is quite satisfactory.




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