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Home > Hardware Reviews > Optical Storage

Friday, February 12, 2010
LiteOn iHAS524

2. CD/DVD reading tests

For our CD/DVD transfer rate tests we used the Opti Drive Control Nero Disc utility and a set of data and audio CD/DVD R/RW/ROM media. Here we test the maximum reading speed of the LiteOn drive for each type of disc. For comparison, we have included the corresponding reading results two otther 24x DVD burners, the LiteOn IHAS324 and the the Optiarc AD-7240S.

-CD-ROM

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 35.14x 36.67x 37.05X
Random seek 98ms 149ms 100ms

- US-RW

The following CD Speed graph shows the reading performance with US-RW media.

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 29.06x 31.27x 30.59x
Random seek 96ms 151ms 97ms

- AudioCD

In the CD Speed Advanced DAE quality test, the drive's average speed was 33.83X with a quality score of 100.

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 33.83x 28.49x 33.11x
Quality score 100 99.1 100

- CD DAE

Digital Audio Extraction or DAE is important when we try to read the files stored on an audio CD and store them in our hard disk drive. The procedure is not always that simple and the fidelity of the extracted data depend on the way each drive handles these data.

The majority of the software that support this procedure, commonly known as "ripping", will just read the audio files and store them on your hard disk. However, this approach is not recommended for all drives, since it may result to read or sync errors if your drive does not support report of C2 error pointer information and also what the author of the EAC (Exact Audio Copy) software describes as "accurate stream" and " non-caching."

According to EAC, the LiteON IHAS-524 drive does not support "caching ", but it supports "Accurate stream" and reports "C2 error" pointer information.

Accurate stream and C2 error reporting is always welcome and contribute to reliable and fast audio extraction. Generally, if you select a drive for extraction better have a look that the drive does not cache audio data.

If you are sure about the physical condition of your audio CD and you need faster extractions, you may chose the default audio ripping settings of the EAC software. A typical ripping task finished at an average reading speed of 33.3X:

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 33.3x 28.7x 33.11x

- 90 mins Audio disc

90min Audio disc

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 28.71x 36.78x 36.98x
Random seek 127ms 115ms 103ms

- DVD Format

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 16X maximum speed for single layer DVD ROM and at 12X for dual layer DVD ROM media.

DVD-ROM SL media

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 11.46x 12.04x 12.12x
Random seek 103ms 130ms 98ms

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.

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 8.65x 8.85x 9.14x
Random seek 118ms 130ms 103ms

 

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.

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 8.62x 8.85x 9.13x
Random seek 119ms 131ms 102ms

 

DVD-R

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 11.47x 12.07x 12.14x
Random seek 128ms 126ms 129ms

DVD-RW

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 8.52x 9.77x 9.01
Random seek 110ms 128ms 117ms

DVD+R

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 11.47x 12.06x 12.14x
Random seek 128ms 129ms 131ms

 

DVD+RW

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 6.18x 9.79x 9.03x
Random seek 106ms 126ms 105ms

DVD+R DL

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 8.53x 9.01x 9.05x
Random seek 161ms 131ms 126ms

DVD-R DL

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 8.53x 9.01x 9.04
Random seek 168ms 131ms 130ms

DVD-RAM (12x)

 

LiteOn iHAS524 Optiarc AD-7240S LiteON iHAS324
Average Speed 10.21xx 10.07x 10.22x
Random seek 150ms 299ms 145ms

DVD Ripping speed -

Ripping of a single layer DVD movie:

  LiteOn iHAS524 LiteOn iHAS324 Optiarc AD-7240S
Average 5.766KB/s KB/s (4.2x) 11.950 KB/s (8.6x) 11.761KB/s (8,5x)
Maximum 16.741 KB/s (12.1x) 16.807 KB/s (12.1x) 16.451KB/s (11.9x)

Summary

The reading process of almost all media was completed without read errors and at speeds that match the drive's specifications.




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