1080p quality starts with your converter. A good converter to use is Xilisoft HD Video Converter. Click link for free download.
Download > Install > Open converter > Insert skate. clips > Change output profile
https://lh4.googleusercontent.com/-w...09E/s694/7.png
Top right box. Change profile to video stream.
https://lh3.googleusercontent.com/-3...Tw/s326/sd.png
In video stream, adjust the settings according to the following two pictures:
https://lh3.googleusercontent.com/-w...gfg/s259/8.png
https://lh3.googleusercontent.com/-7...RTY/s233/9.png
Change back to profile. Change to these settings:
https://lh4.googleusercontent.com/-3...UU/s288/10.png
Hit the convert button. Done.
Now, once you have your converted clips, you're going to want to put them in your Vegas.
Open Vegas > Change project properties
https://lh6.googleusercontent.com/-r...R_A/s519/2.png
Every time you put a clip in vegas, right click the clip, then click on properties. Always disable resample.
https://lh5.googleusercontent.com/-Q...0Cc/s519/1.png
When you are done editing the video, you'll need to render the video with the following settings. Click file > render as
https://lh4.googleusercontent.com/-P...uyE/s519/6.png
Render as > custom (video)
https://lh4.googleusercontent.com/-k...epA/s519/3.png
Custom (video) > custom (audio)
https://lh6.googleusercontent.com/-r...dr0/s519/4.png
Custom (audio) > custom (project)
https://lh5.googleusercontent.com/-M...Jek/s519/5.png
Click ok. Click render. When it's done rendering, you'll have a 1080p High Definition video.