Analyzing Multiple Video Files

I have about 2000 .mkv video files most of which contain h.264 video and ac3 audio streams. However, an unknown number of files contain xvid video and/or acc audio streams. Does anyone know if a utility exists that will analyze multiple video files at the same time to identify the video and audio streams within the .mkv containers? I know this sounds pretty sketchy, but I dread opening every file individually in MediaInfo.

Thanks in advance.