i did the check and it was wrong
the md5 i got back was
C184E8CEDDE1B5CE3E9773DD237B4ED8
instead of
9685E1B00B7D1B31EDE436BD9B12BE39
the link http://download.imgburn.com/SetupImgBurn_2.5.8.0.exe
i just downloaded the file again and now the md5 is good
so if there was a problem it is solved now and we can use the best burning software ever without any trouble
still thanks for your reply