As you know, the capacity of writable DVDs is smaller than the capacity of a original DVD, furthermore, a lot of original DVDs incorporate a dta protection within them. If you want to skip this data protection. DVD Shrink will extract the information, it will compress it and it will prepare it to burn that information into an empty DVD
When this process is done, you only need a program to burn the image from the HD to the DVD (such as DeepBurner or Nero Burning Rom.
In additin, DVD Shrink is totally free and doesn´t need to be installed.