I have Sony vegas 13, it cant open MKV files & it wont open converted files...

I’m using windows, is there any other software I could change to so I can start editing?

I also suffer with rendering issues, files ending up looking pixated.

I used ffmpeg to convert the files to mp4, but when i open them in vegas they don’t work no matter what I try.

I’ve I’ve wanted to edit movies but I’ve been stuck going around in circles.

Any help would be great. Thanks guys.