I need a way to either tag a .mkv file like I would tag my .mp4 files. Is there any program that will let me do this? Otherwise I need a format that will still have the DTS surround sound audio and tag it with at least art. I used to : 1. Use MKVMerge to extract the original audio, save it in a separate folder. 2. Use QuickTime 7 and convert the file into .mp4 with Passthru on video. 3. Use VisualHub and use Passthru on both video and audio. 4. Meta X- Tag the file with art, name, and all the other important info. 5. Enjoy my movie but only with stereo sound. I want to readd the DTS because I bought a home audio system capable of decoding the DTS audio. Any help?