Please any help on this problem. 
I try to convert conference wav file to mp3 from my recorder.
Many of them are OK but any others, when I try to convert, is open the error alert:
Abnormal Program Termination
The same file I can play in other player, for example , windows media player, but I can't to do anything with "Switch"
Whith the same recorder many other files, same type, same recorder, I don't have any problem.
Where are the problem and what is the solution.
Thanks in advance for any help.