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Home > Hardware Reviews > Optical Storage

Friday, April 11, 2008
LiteOn DH4O1S BD-ROM

4. DVD reading tests

Now let's take 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 DVD ROM and at 8X for dual layer DVD ROM 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

 

- DVD-RW

 

 

- DVD+R

 

- DVD+RW

 

- DVD+R DL

 

-DVD-R DL

 

 

- DVD Ripping speed.

Ripping of a single layer DVD movie:

Average 8,19KB/s (5.9x)
Maximum 11,36KB/s (8.2X)

The drive read all the DVD disc fast and met its specifications. Although the supported speeds are slightly lower than what a typical DVD burner can offer, they are still adequate for your everyday tasks. The Pioneer BD-ROM was slightly faster in the DVD-R/+R reading tests.

 




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