i think he means when he plays them on anything using the DVD, i use to get the same problem, i dont think i ever fixed it, but i just dont bun DVD's anymore, i dont really have areason to lately
If u are using K-Lite Codec Pack , it has media info or get it MediaInfo , right click on the file and select media info, it will show u all the info from the video.
Post it here or check it, if there is a audio stream on it. If u are using VLC when playing, click CTRL+I.
Completely free without any adware, spyware or limitations, an open source project.
Burn near any video file to DVD
Support for over 45 file formats
Support for over 60 video codecs
Support for over 40 audio codecs
Easily add a menu
Add your own subtitles
Easy to use interface
Burn your project to disc after encoding