Nero Vision Express - freezes when transcoding

I’m making compilations of music videos.

I am using Nero Vision Express (version, and I get 2 problems which I do not get when using similar (but inferior) software, such as made by Ulead & Xoom:

  1. Upon adding video files I get the error "Unable to insert " on a few certain files.
  2. Whilst transcoding the program freezes up on a few certain files.

What is happening, and how can I get round this issue? Has anyone tried Adobe Premiere Elements?