Mdisk Video Downloader is a tool (web service or app) used to download videos from Mdisk (a cloud storage/file-sharing platform) links so users can save shared video files locally.
If you are looking to download and permanently archive video files, "M-DISC" refers to physical optical media designed to last up to . This is a "write-once" format, meaning once you download and "burn" a video to it, it cannot be erased. Mdisk Video Downloader