Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.
Attribution and changes
Adapted from “Sharp MD-MT821”. Links, layout and file names normalized; missing database fields restored; remote embeds replaced with links. Manufacturer manuals and separately credited photographs retain their original attribution.
| Name | MD-MT821 |
|---|---|
| Manufacturer | Sharp |
| Released | 1999/02 |
| Device type | portable |
| Recorder | Recorder |
| MDLP | No |
| NetMD | No |
| Hi-MD | No |
| Radio | No |
| Dimensions | 82.5 (width) x 20.7 (height) x 77.9 (depth) mm |
| Weight | 177g w/batt |
| ATRAC ver | Sharp 6 |
| Battery | Not recorded AD-T51BT |
| Battery notes | Not recorded |
| Sidecar (depr) | 1xAA |
| Voltage | 3.5, 3.6, 4.5, 5 |
| Power cable | Not recorded |
| Price (launch) | Not recorded |
| ¥46 000 | |
| - | |
| Inputs | 3.5mm line in (optical multi), 3.5mm microphone |
| Outputs | 3.5mm headphone |
| Control | Not recorded |
See also: Kenwood DMC-K9R
Features: Through component size reductions, unit has 28% less volume and is 20% thinner than the MS721. Uses same LSI chip set as the MS721/722 (Sharp ATRAC 6). "Top open" (i.e. clamshell, not slot-in) disc insertion. 40 second shock memory. 20bit DAC and ADC. High speed scroll and 3 character display during character selection speeds titling. Triple shuttle backlit LCD remote. Mic and digital synchro start recording. Disk/track "name stamp" function allows titles to be cloned from another disc. 2x high speed playback option on mono recordings. Unit can be operated while recharging. Available in silver, blue and black.
Included accessories: LCD remote, headphone, LiIon cell, AC adapter, connection cord, AA cell case, handstrap, carrying case, instruction manual, warranty card.
Separately available accessories: 100-240VAC adaptor (AD-SS70AP) ¥5000, LiIon cell (AD-T51BT) ¥5500 (from 3/21/99), LCD remote (AD-S31RM) ¥7500, Car power (12/24VDC) adapter (AD-CA20X) ¥5000, Digital sound card (AD-AJ2) ¥25,000.
Mis-features: No date/time stamp during recording.
Specs: Headphone amp: 10mw+10mw into 16ohms, Line: 250mV (@-12dB) into 10Kohms.
Content adapted from: Sharp Press Release Sharp Press Release (MiniDisc Wiki mirror) Minidisc.org page Sharp Product Page Sharp Product Page (MiniDisc Wiki mirror)
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