You're very welcome. Please read up as much as you can it will save you time, money, and aggravation in the long run.
As I said brands of media are not manufactured by the company but rather packaged and bought from media manufacturers. By getting the best suggested by end users, you will cut down your odds of getting poor media. Even if the media did burn well, perhaps 6 months or a year from now it no longer will play properly because an inferior dye was used and it's breaking down.
Below is a link that has some cross reference for media codes, it is not complete, and there is no DL media is listed.
The brand media is on the left, the manufacturer is to the right.
The manufacturer code is the most important. As a rule of thumb when you buy media, inspect the packaging and try to buy media that's made in Japan, usually it's quality.
Link for Manufactures ID Codes (MID)
You can download the display box for DVD's and Disks at the below link.
Not all have the disks available.
Whatever you do, NEVER PUT A LABEL ON A DVD, use a sharpie to write on instead. If you like though there are printers available that can print directly on the disk, Epson I know makes some that are relatively inexpensive.
But do your homework first and read about it, I believe some take a long time to dry. Also you will need to buy media that permits you to print on it.
[font=Verdana]CD & DVD Covers
(Scroll down To DVD and select a letter the movie begins with)[/font]
The reason you should never put a label on a DVD is that they are far more sensitive to weight imbalance than a CD and can cause skipping, freezing, or not playing at all. It can also damage the laser in your stand alone DVD player.
You may read many saying they never have problems putting labels on, I can just tell you this, you've been warned, so choose the path you wish.
Best of luck with your DVD burning.