LaCie d2 DVD±RW DL external drive with Firewire



DVD+R Dual Layer writing speed and compatibility:


The LaCie d2 DVD±RW Double Layer supports the new DVD+R DL standard for writing Dual Layer discs with a size of 8.5 GB. Since we do not have many results to compare with, we decided to include results from a Sony DRU-700A (Lite-On 832S) Dual Layer Drive and a Philips DVDRW885 Dual Layer Drive. Let us first take a look at the media we will use:


Let’s find the manufacturer and media information too, for this we will use DVD Identifier 3.4:

Unique Disc Identifier : [DVD+R-DL:MKM-001-000]
Disc Type :              [DVD+R DL]
Manufacturer ID :        [MKM]
Manufacturer Name :      [Mitsubishi Kagaku Media]
Media Type ID :          [001]
Product Revision :       [Not Specified]
Disc Application Code :  [General Purpose]
Recording Speeds :       [1x , 2.4x]
Blank Disc Capacity :    [4,173,824 Sectors = 8,152.0MB = 7.96GB (8.55GB)]

[DVD Identifier –]

Full media code:
0000 : e1 0f 32 10 00 03 00 00  00 fc ff ff 00 22 d7 ff   ..2……….”..
0010 : 00 00 00 4d 4b 4d 00 00  00 00 00 30 30 31 00 40   …MKM…..001.@
0020 : 25 25 37 0c 02 2f 63 02  2f 63 21 23 0d 0e 14 14   %7../c./c!#….
0030 : 02 01 01 10 00 21 23 0d  0e 14 14 02 01 01 10 00   …..!#………

The media is made by Mitsubishi Kagaku (Media in Singapore ).

Testing procedure: We created an ISO Image of the largest DVD-Video disc we had (Nemo, 7.91 GB (8.495.888.384 bytes)) using DVD-Decrypter. Then we wrote this image file using Nero Burning ROM 6. Below are the results:

LaCie d2 DVD±RW Double Layer used 42 minutes and 44 seconds for writing the disc at 2.4x.

Philips DVDRW85 used 45 minutes and 5 seconds for writing the disc at 2.4x. (Test DVD-Image about 0.1GB smaller).

The Sony DRU-700A used 44 minutes and 37 seconds for writing the disc at 2.4x. (Test DVD-Image about 0.1GB smaller).

As we could see, the LaCie has a lead for writing the disc as it used (1 minute and 53 seconds /2 minutes and 21 seconds) less time for writing it compared with the 2 other drives. The time differences are large when we also consider that the image used for the LaCie drive was 0.1 GB larger, let us take a look at the K-Probe result of the created discs:

The picture above shows the result of the DVD+R DL discs written by the LaCie d2 DVD±RW Double Layer. We could easily see the amount of errors is much higher at the first layer.

The above picture shows the result of the DVD+R DL discs written by the Philips DVDRW885 and overall the amount of errors is very low. There is a small error spike at the layer change, but hopefully not enough to cause any problems.

And this picture shows the K-Probe result of the Sony DRU-700A written disc. And as we could easily see the amount of errors is much higher at the second layer.


The LaCie took a clear victory over the Sony for writing quality measured with K-Probe.

Now it’s time to take a look at some real life reading tests with various DVD-Writers and DVD-ROM drives.

First, we will try to read the discs back in the LaCie d2 DVD±RW Double Layer drive:

As we could see, the LaCie drive had no problems reading the discs, but the reading speed is limited to approximately 5x.  Let us try some other drives to read the Dual Layer discs:

The LG GSA-4120B Dual Layer drive did not have any problems with reading the dual layer discs either and it even read it at 8.19x.

This graph shows the discs could be read back without problems in the Lite-On SOHW-832S Dual Layer Drive . Let’s try reading the discs in a JLMS XJ-HD166S DVD-ROM:

With the JLMS XJ-HD166S DVD-ROM we could see some problems: The drive recognised the LaCie written DVD+R9 DL as 31.25 GB !!!!!! Also, there was a small problem after the layer change. In addition, Nero CD-DVD Speed hung (Program Not responding) when as it reached the end of the DVD+R9 DVD. (Could this be a firmware bug in the JLMS XJ-HD166S DVD-ROM?) So we decided to try the DVD+R9 DL DVD in Artec/Ultima 16x DVD-ROM:

Perfect reading curve almost 11x with the Artec/Ultima 16x DVD-ROM.


Standalone DVD-Player compatibility:

We do only have 3 standalone DVD-Players available to test the LaCie DVD+R9 DL written DVD (Book Type: DVD-ROM is done automatic by the firmware shipped with the LaCie

         Aiwa DVD Player XD-DV370

         Medion DVD/Div-X Player MD7457

         Red Star DVD-Player 230G


Compatibility results:

All of the 3 standalone Players played the LaCie DVD+R9 DL perfectly.



Very good results! The LaCie drive even sets the book type automatically to DVD-ROM with the shipped firmware on DVD+R9 DL media. The only negative with the drive is the Kprobe errors in the first Layer. (But at the time being nothing to worry about, since we only made one test with a DVD+R9 DL disc).

This concludes our DVD-writing tests, so head on to next page and read about the RW and packet writing performance of this drive…