Write Time/Quality Test - DVD+R DL 2.4x Media

Dual layer writing capability has made its way into every new optical chipset used in all newer drives. During our 16x roundup in November 2004, Sony's DRU-710A was one of two drives that failed to write to our dual layer test media. We hope that Sony has since fixed this issue with the DRU-720A.

Write Test - DVD+R Dual Layer 2.4x Media

As reported by Sony, the DRU-720A will write at 4x speeds to any certified media rated at 2.4x and it did just that, with the MKM 001 media at least. The drive wrote to the media at an average rate of 4.06x in 26:54 minutes. Surprisingly, the DRU-720A did not perform as well on our Ritek D01 media. The 720A could not kick the speed up past the 2.45x mark and it took 43:54 minutes to complete. From the Nero CD-DVD Speed screenshots, both writes seemed to complete without a hitch.

Again, we scanned the dual layer media for PI errors using our PX-712A.


Hold mouse over for the MKM 001 DVD+R DL image.

The number of PI errors found on the Ritek D01 media was astounding! With the majority of the PI errors on the first layer of the media, the total number came out to be 1838512. With this many PI errors, it is quite possible that this particular written media will be unreadable. The MKM 001 disc had very few PI errors, 54196 total, which occurred mostly on the first layer.

Screenshots of the 2.4x DVD+R DL media read and write processes in Nero CD-DVD Speed as well as scans with PlexTools have been compressed into a downloadable zip file: 24xduallayer.zip

Write Time/Quality Test - DVD+/-RW 4x Media Read Tests
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  • semo - Tuesday, March 8, 2005 - link

    #14
    "I used to make my own cdrw/dvdrw cases with custom inserts but after realizing how much time and ink I was waisting I finally went back to the sharpie route."
    that's why i want lightscribe, so i don't have to waste too much time. it can burn the label all day, i don't care, i'm away most of the time anyway and i almost never use the cd/dvd after i burn it.

    and "Take a art class or two and become more talented with a sharpie :)"
    would you say something similar to this to someone who wants a printer?
  • PuravSanghani - Tuesday, March 8, 2005 - link

    #15: Our next roundup should include all of the highest speed media supported by the competing drives.

    #16: Sometimes. Although, there are brands of media out there that just do not work well with certain drives/firmwares.
  • bjtag - Tuesday, March 8, 2005 - link

    If you write at slower speeds are the errors less?
  • Hemispasm - Tuesday, March 8, 2005 - link

    Good review. Some more media scans would have been nice (and informative) though :)
  • dgkulzer - Monday, March 7, 2005 - link

    #2 - I was under the impression that all Sony drives are now made by LiteOn. At first it was just the cdrw drives but now the dvdrw are also.

    #3 - Take a art class or two and become more talented with a sharpie :) I used to make my own cdrw/dvdrw cases with custom inserts but after realizing how much time and ink I was waisting I finally went back to the sharpie route.

    My first couple of dvdrw drives were Sony and I had great luck with them but when I got a new black case I decided to get a new drive and the dvr-108 was on sale so I got that. I don't care for DL much yet and will not be interested until the price of the media gets to about 1/10 its price now.
  • WooDaddy - Monday, March 7, 2005 - link

    Is there a place that sells DL media for less than $7 yet? DL burner is a nice feature.. if you can use it and it's affordable. Personally, I still like my ND3500A with 2.18 modified FW. Burns TDK, Sony and Fuji DVD+/-R 8x media at 16x flawlessly. I'll need another burner soon so I'll be looking forward to Purav's next review.

    Keep up the good work guys!
  • KristopherKubicki - Sunday, March 6, 2005 - link

    bofkentucky: we have a second 16x roundup in the next few weeks.

    Kristopher
  • bofkentucky - Sunday, March 6, 2005 - link

    I would have liked to have seen the this up against the 8MB cache Plextor's. Are there plans for an optical shootout in the future.
  • ND40oz - Sunday, March 6, 2005 - link

    How about they test the 720 next to the old 710 with the latest firmware since it brings it up to the 720s specs.
  • semo - Sunday, March 6, 2005 - link

    meant to say media are lagging behind as usual
    [rant]why the hell isn't there any edit button in here[/rant]

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