Making no bones about it: it would help if you provide some relevant information and/or ask a clear question. There are about a million variables possible in hard- and software and type of media-files (and how they are encoded). So why not make your post more informative, understandable and useful? Or don't you really expect some possible help and just wanted to air your grievances?
(Suppose you already read
this thread and followed the info and hints in it?)