I recomend an external drive but you can save your content directory to DVD disks.
In time you will wish you had it on an external drive and DVD's.
My DAZ content folder on my ExDrive is over 150 gigs. if that was on my C: drive
That would slow my computer down some. For me that is important. I run from
a DELL XPS Laptop.

Once LM2003Mildrag_MATS is unzipped you should see a LM_Mildrag folder
in the pose directory.

Oh another idea that helps speed things up I use if anyone wants.
In Figures, Pose and Props ( DO NOT CHANGE ANY OTHER DIRECTORY )
I combine items  For example I will just show V3 You should get the idea
This works great.

Figures
          +!  V3 Clothes
              +StrapTop
              +V3 Dynamic
              +Sagies
              + Conforming
              +and so on
          +!  envirement
               +Sub Folder

Pose
         +!  A3
         +!  SP
         +!  V3
         +!  V4
         +!  V3 Clothes
              +Sub Folders
         +!  V3 Pose
               +Sub Folders
         +!  V3 Skins
               +Sub Folders
         +!!  Objects
              +Sub Folders
         +!!  Wings
              +Sub folders
          +!!!  envirement
               +Sub Folder

Props
       +!  envirement
       +!  objects
       +!  Plants

Well you get the Idea.
It takes a little work but I tell you I don't spend 10 hours trying to
 find that piece of  what ever that goes with what ever.
When I'm working with Akio All I have to do is look in all her folders.

I know I'm rambling
Good luck and good rendering

Lighthorse
FalconArts.Com