An audio recording apparatus provides a method of managing the video and audio navigation data for a rewritable recording medium, such as DVDs. According to the invention, the spring and the casing are so designed and adapted one to the other that the casing finds support on the holder and is clamped for this purpose between the spring and the holder. A pair of cylindrical spacer members are inserted into the opposed ends of the through-hole. The monitoring device also includes a display that displays all or a portion of the data. An MRI imaging system and method are also described herein.