I am trying to create a mp4 file (or another format that WMP12 will stream) with multiple audio tracks in it, but, I did not find out how to do this. any suggestions? For people who gather lots of DVD movies at home, it’s necessary to own Bytecopy. It's your best tool to rip and convert DVDs to MP4 container format with multiple audio tracks and subtitle sincluded. It also could rip and convert DVD to any video format you like. The following short guide shows you how to convert a DVD to mp4 with original video, audio and subtitles. Software Download: Pavtube ByteCopy Step 1. Run Pavtube ByteCopy software, put source DVD into ROM, Click “Load Disc” to import movie titles from DVD. The software decrypts DVDs of all regions. Here I take DVD movie Step brothers for instance. Step 2. Choose MP4 format as output, here “Format > Multi-track Video > Multi-track MP4 (*.mp4)” is recomended for you. Note: If you want to combine multiple mp4 files into one, please check the "Merge into one file" option. Step 3. Click the “Convert” button to copy DVD movie to mp4 with original video, audio and mutiple subtitles. The process takes about 10mins. When it completes, click “Browse Export Path” to find generated mp4 file with Dolby Digital 5.1 audio and multiple subtitles included. The Blu-ray/DVD to mp4 converter is really easy to use. Hope it also works well for you.