Why dont these videos play properly on my PC ?? the video & sound dont match...Video plays too slow while the audio in the back plays Okay..
Can anyone tell why is this happening??
If using Windows, install the following codec pack:http://www.cccp-project.net/
For Mac, VLC is the best choice. You can easily use hotkeys to delay or advance the audio in relation to the video as well.
Of course, like others have stated, it's all dependent on your computer's graphics processing capability and processor speed. If it's on the older side, it may not be able to keep up with the demands of HD rendering. My older MacBook is barely able to handle it, despite 4 gigs of RAM.