How to convert .mp3 audio to .dvr format.
Converting MP3 Audio Files directly to Microsoft Recorded TV Shows (.mp3 to .dvr conversion) is possible and quite straightforward. It relates to users attempting to encode MP3 audio to DVR video.
Try using a media editing software or (online) conversion tool, such as Freemake Video Converter, which should allow users to import MP3 audio and export it in DVR format.