I don't think the program itself would make much of a difference in this case, it's saying the file is in use so it's something stupid with the file its self.. So before you end everything on your taskmannager that's probably not the problem...and I really don't think your cd is the problem either
.. maybe your computer is old timey and you need to unlock the files by pasteing them somewhere else? Perhaps they are encrypted? I don't think that if it's encrypted it would give you that problem either..
I don't know
gimme some feedback!