Thanks Mr Velte for answering my question.
I thought so too that it might be a corrupt file. I deleted the file and reencoded it numerous times without changes.
But yesterday, I remembered a bug that I had long time ago. Then I sneaked into Windows’ soul and did this :
Right clicked on My Computer ; Went to Properties then Clicked Advanced Tab ; Under Performance, cliked Settings and scrolled down until I saw : Use Common Tasks in Folder. Removed the check and cliked apply.
Boom, no more crashs. It was a Windoze problem.
My problem is solved and I hope it’ll be useful to someone else.
Thanks again.
Guy Durand