Videos encoded with H.264 AVC (part 10) do not load

[gbraad]

Videos that have been captured with the Game DVR (Microsoft built-in recording Win+G) function do not load within Vegas. It loads the AAC audio part, but NOT the video!

[ghml]

Vegas Pro is a video editor, not a video converter.

For opening videos that don't use common formats/codecs, your best option is to process it in a Video Converter software before editing.

Here are a couple of options:
1) Freemake Video Converter (Lite version is free): http://www.freemake.com/free_video_converter/

2) Audials Moviebox (Available on Steam): http://store.steampowered.com/app/405690/Audials_Moviebox_2016/

[gbraad]

I have been using Vegas for years. This is a very common format which used to work in Sony Vegas with the Mainconcepts plugin. Forcing to use QuickTime crashes Vegas. This is why it is unacceptable...

[Veniamin_kHz]

You need correct codec - https://sourceforge.net/projects/x264vfw/files/
Video tutorial - https://www.youtube.com/watch?v=SSa2mQoRvIA