Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.
Attribution and changes
Adapted from “Panasonic SJ-MR230”. 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 | SJ-MR230 |
|---|---|
| Manufacturer | Panasonic |
| Released | 2002/10 |
| Device type | portable |
| Recorder | Recorder |
| MDLP | Yes |
| NetMD | No |
| Hi-MD | No |
| Radio | No |
| Dimensions | 80.4x74.6x20.1mm |
| Weight | 94g (121g w/batt) |
| ATRAC ver | Panasonic H.D.E.S |
| Battery | Not recorded "Gumstick" |
| Battery notes | Not recorded |
| Sidecar (depr) | Not recorded |
| Voltage | 1.2, 4.5 |
| Power cable | Not recorded |
| Price (launch) | Not recorded |
| ¥35 000 | |
| - | |
| Inputs | 3.5mm line in (optical multi), 3.5mm microphone |
| Outputs | 3.5mm headphone |
| Control | Not recorded |
Offered in SJ-MR230-S (Silver) / SJ-MR230-A (Blue) / SJ-MR230-R (Red)
Features: Unit appears to be a non-NetMD little brother to the SJ-MR250 with improved battery life (and reduced 3.0mW headphone power [cf. 3.5mW headphone amp of SJ-MR250]). Includes charging cradle and small, separate titanium cone speakers. 10-key titling keypad in charging cradle for track and disk name input as well as MD editing (group, divide, etc.). One finger LCD remote, adjustable recording level for digital, line and mic inputs. Panasonic's "H.D.E.S" audio compression. Handy "1 track recording" feature that pauses unit after recording one CD track. Auto time-mark recording. Kanji and kana display on LCD remote and main unit (but no Kanji/kana titling is possible). Synchro-recording from audio sources (digital and analog?). 4-step battery charge indicator on main body and remote. S-XBS 2-step bass boost. Intro-scan playback. "Train-mode" feature to cut high frequencies on playback to avoid disturbing others nearby. One-track/all-track repeat, random play modes. Battery can be recharged without needing to be empty first.
Included Accessories: LCD remote, AC adapter, stereo "inside-phones", attachable AA cell case, carrying pouch, USB cable, NiMH rechargeable cell, "multi-cradle" with speakers
Specs: Headphone amp: 3mW+3mW, Speaker amp: 900mW+900mW, 100VAC, Freq. Resp. 20-20kHz +0/-8dB
Content adapted from: Panasonic Press Release Panasonic Press Release (MiniDisc Wiki mirror) Minidisc.org page av.watch
Manuals
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Additional specifications and references
| Web Md | No (not NetMD) |
|---|---|
| Manual | Service manual |
| Region | Japan |