Go Back    Forum > Digital Video > Blank Media

Reply
 
LinkBack Thread Tools
  #1  
01-04-2012, 04:52 PM
via Email or PM via Email or PM is offline
Free Member
 
Join Date: Dec 2011
Posts: 173
Thanked 0 Times in 0 Posts
Are double layer DVDs as good as single layer?


This question was asked via email. Site Staff no longer answer tech questions via email, so that others may read and benefit from our expertise. Please continue the conversation here. Either login or join as a Free Member, and we can continue troubleshooting your video, photo or web related issue. Thanks for understanding our tech Q&A policies.

Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
01-04-2012, 04:59 PM
kpmedia's Avatar
kpmedia kpmedia is offline
Site Staff | Web Hosting, Photo
 
Join Date: Feb 2004
Posts: 4,311
Thanked 374 Times in 341 Posts
You'll really have to specify the intended use.

For DVD-Video use, using DVD+R DL or DVD-ROM (pressed discs), then yes, absolutely. The burned discs will play fine in DVD players -- especially if the DVD+R DL is book typed to DVD-ROM. However, you would not want to use DVD-R DL blanks for DVD-Video, because the way the layer break is set.

For archival data use, pressed DVD-ROM (DVD9) is fine. Recordable/burned DL DVDs, however, should give archivists pause. The secondary layer is more difficult to read -- something like 60% reflectivity -- which could degrade beyond readability within the expected whole-disc life span. The 60% is so narrow that even a 5% loss of reflection could render the disc unreadable. And given how lasers must punch through a semi-transparent dye layer, and refractive quality changes to the bottom layer (layer closest to the laser lens) could prevent proper reading of the upper layer.

So again .... under what conditions are you wanting to burn these DVDs?

... Assuming the conversation is even about recordables.

Reply here, not via email. Thanks.

- Did my advice help you? Then become a Premium Member and support this site.
- Please Like Us on Facebook | Follow Us on Twitter

- Need a good web host? Ask me for help! Get the shared, VPS, semi-dedicated, cloud, or reseller you need.
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Dual Layer Taiyo Yuden Dvds (inkjet printable), Where to buy? guokamoli Blank Media 5 06-01-2011 06:41 AM
Dual layer DVDs - SP mode is 4 hours? admin Blank Media 0 05-20-2009 05:17 PM
Double Layer DVD-R which is the best?? MOTUfan Blank Media 8 10-10-2006 06:20 PM
Procoder 2.0 to shrink 6GB video to single layer DVD ? MBates05 Encode, Convert for discs 19 12-19-2005 04:45 AM
Dual layer and double layer ndbs9u3 Blank Media 2 10-10-2005 03:34 PM




 
All times are GMT -5. The time now is 08:10 PM