My hard drive crashed and I was able to retrieve some old backup files.

I am restoring that now but it has been running for 26 hours now.  It is buffering and hasn't crashed or froze but I don't know how long I should wait, considering I don't even know if it will be restored.  I should mention some of the information goes back to 2009, so it is a huge file.

Has anyone been in this situation and does it seem normal to take such a long time?