Ok, so seems i have another problem with the downloaded mp4 files... When i open em with VLC, every some seconds it get stuck and displays something like that
http://i.imgur.com/OoCqkx6.png (if i replay the scene it get stuck on another parts) , i also tryed to convert em to FLV and AVI via Any video converter and freemake video converter programs and the converted files still have problems like on freemake unsynchronized audio/video and on any video converter stuck every some secs and then jump with fast speed some milliseconds later (like "hi, how are you.... dfglsdflgbcv... and you?)".. :/
Also its acctually downloading a 1,32gb file!!