Copying massive amounts of files are slow and prone to errors.
First some common sense…
There are many tools listed at http://en.wikipedia.org/wiki/List_of_file_copying_software including
- XXCopy (a good product but plagued by one unforgiveable bug that keeps it from being my favorite and the lack of a GUI is a bad point as well)
* Orphaned by Microsoft rather than sanely being made a first class part of their Operating System.
But my current favorite is FastCopy.Minimalist with simple UI but fast and reliable.
is as good a place to get it as any.
It outperforms most of them and handles errors and retries well.
FAQ #1: I encountered the dreaded
GetVolumeInformation(Access is denied.5)
when trying to copy from Network path.
Answer: It does not like Network paths unless you map drives to them. Then it copies fine.