Umm what the hell are you talking about? A minidisc stores data in a format that is compressed by default. There is no such thing as "just minutes". I can store much more than five hours on a cd, if you let me lower the bitrate samplingrate and/or bitdepth enough. yeah minidiscs are compressed, I know that, that is why I will never use them, having a lossy compression on your masters is idiotic (I do not even like distributing lossily compressed material).