Exclusive: Sony DRU-700A Dual Layer Recorder
by Kristopher Kubicki on May 5, 2004 11:30 AM EST- Posted in
- Storage
Error Tests
Although the write speeds are important, equally important is the drive's ability to write cleanly. We used one DVD+R (MCC 003) and one DVD-R (MCC 02GR20) for each burn test. Unfortunately, we had the issue of our standard MCC 003 media burning at 4X; we typically burn at the maximum speed for this test.We used KProbe 2.1.0 with a Lite-On LWD-851S drive for our tests.
Sony DRU-700A MKM 001
Click to enlarge.
Update: We got an email from Karr Wang (designer of Kprobe2) claiming the tests we see from the PI/PO detection are 100% correct. Remember how DL technology works (see the primer if you need a refresh): the L1 layer sits behind the L0 layer. Thus, any errors on L0 are essentially amplified as we read the L1 layer. This disc read correctly in our Apex AD 2500, as well as every PC DVD reader in the lab.
Sony DRU-700A MCC 003
Click to enlarge.
Our MCC 003 burn went extremely well; although, it is hard to contest the validity of this burn, since we could only burn this media at 4X. We included it for reference anyway.
Sony DRU-700A MCC 02RG20
Click to enlarge.
The DRU-700A had some issues burning this disc cleaning, but consider the similar pattern we saw with the Gigabyte GO-W0808A last week in our roundup.
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Rumble - Thursday, July 29, 2004 - link
Will it work with XCopy?Rumble - Thursday, July 29, 2004 - link
Will it work with XCopy?KristopherKubicki - Saturday, July 17, 2004 - link
Dizan,I think it will be 4X DVD DL capable (not that there will be any media anyway).
You can probably still order it or the LiteON SOHW-832S from the US though.
Kristopher
DizanTar - Friday, June 11, 2004 - link
I asked Sony about if and when this drive will be available in Canada. Sony responded that this model will not be available, but the replacement drive will be in august. Anyone knows about a new model of this drive, except the external one?DizanTar - Friday, June 11, 2004 - link
fedrive - Tuesday, May 11, 2004 - link
Atomic holographic Storage using Ultra Violet Light should offer a challenge to Blu-ray.http://www.colossalstorage.net/colossal5j.htm
AbRASiON - Thursday, May 6, 2004 - link
I concur with Tim (post #15) - it would be nice to know we can control precisely where the layer change is.I'm also curious on the compatibility of a BURNT +R DL or -R DL disc on most DVD players - I bet it's quite a bit lower than non DL disc's
:(
Belzer - Thursday, May 6, 2004 - link
I think the DL burners eventually will be faster than 4x speed, maybe 6x-8x. Remember that it was not long ago that many said that DL burning would not be possible at all. Quote from the same article as you linked to: http://www.cdfreaks.com/article/140#philips"For instance, one company (BenQ) mentioned to us that 4x would be the maximum recording speed for DL discs but the spokesperson for Philips said that it will probably go faster than that."
MysticMan1 - Thursday, May 6, 2004 - link
Also the DL format speed will max out at 4x speed because of the amount of power needed to burn a double layer disc.timmiser - Thursday, May 6, 2004 - link
I am concerned about software support specifically choosing when the DVD switches layers. In commercial DVD's, they purposely put the change to the second layer at a part of the movie where it will be less noticable. (The switch causes about a 1 second pause.).If I am burning a home movie onto a DVD DL and if I don't have control of where the dual layer switch occurs, it may occur in the middle of an undesirable moment in my movie.
I wonder if there will be any way to stipulate where this switch occurs?
-Tim