ImgBurn is a very good burning software, specially to burn DVD/DL disc.
Shrink use the same software to burn or Nero, you just have to point to which one you like.
Shrink and ImgBurn are made by the same guy, but he had to abandon Shrink development because it is a ripping software.
At the end it all depend what you want to do. Lots of people author DVD in some other software and use ImgBurn to burn disc.
Some use different compression software than Shrink, there are many options.