The Sony DVM-85HD 85 Minute Mini DV HD Video Cassette is a high quality recording media for the consumer or prosumer HD camcorder. It is used for HDV camcorders with its improved image quality, and the professional 85-minute tape duration. The tape features 90% fewer errors and 50% fewer dropouts compared to DV Reference tape. The additional three minutes on the tape is for test recording. This helps the user calibrate the camera for best results. You can record the full 85 minutes of 1080i video. When recording in 720p HDV or in DV mode, you can record 112 approximate min in LP and 85 min in SP setting.