If you would like to rip a DVD with multiple audio tracks (e.g. karaoke discs) into individual files for each chapter, you can consider using an old and primitive program called SmartRipper (but it works, even in Windows 10). Change the settings to split files by chapter and you will get a VOB file for each chapter in the DVD title. Rename file extension from VOB to MPG. All audio tracks will be preserved. Download the program from this link. There is no installation; just run the application after unzipping the downloaded file.
FFMPEG can be used to convert a video from one format to another. Very often, the video itself to be converted is already encoded in an appropriate format. You just want to convert the container format.
In the following example, the source video is encoded in MPEG-2 in an MKV container. It will be converted to an MPG video. No re-encoding is required since the source video is already in the target format. You can also select one or more audio tracks during conversion if this is part of the requirements.
If the router runs into a problem of 100% CPU affecting the internet connection, normal courses of actions include re-booting the router, power recycle the router and applying the latest firmware.
If none of the above works, check the computers that have a wired connection to the router. The problem may be caused by one of those computers that require a restart after Windows update. If that is the case, simply restart the computer to finish the update process and the router problem should go away.
If you would like to extract a portion of a video without re-encoding, consider using FFMPEG. The following example illustrates a command to extract a video from the 24th minute line and for 4 minutes 8 seconds, keeping all audio tracks.
Here is another use case for FFMPEG. In some projects, after you mixed and matched video and audio streams from different files, the resultant file may not have the default audio stream as desired. You can use the following command to set the default audio stream while you are mixing the video/audio streams.