Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.
Attribution and changes
Adapted from “Sony PDF-W77”. 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 | PDF-W77 |
|---|---|
| Manufacturer | Sony |
| Released | 1999/09 |
| Device type | misc |
| Recorder | Recorder |
| MDLP | No |
| NetMD | No |
| Hi-MD | No |
| Radio | No |
| Dimensions | 251 x 312 x 50mm |
| Weight | 2.7kg |
| ATRAC ver | Not recorded |
| Battery | Not recorded Not recorded |
| Battery notes | 7.8V Removable Lithium Pack |
| Sidecar (depr) | No |
| Voltage | 12 |
| Power cable | Center positive |
| Price (launch) | Not recorded |
| ¥180 000 | |
| - | |
| Inputs | Not recorded |
| Outputs | Not recorded |
| Control | Not recorded |
"DATA EATA" document reader with dual MD drives and detachable scanner. Requires unique stylus for use.
A4 and B4 size documents can be scanned at high speed in about 4 seconds
Free scan function that automatically saves and organizes irregular-sized paper such as memos and clippings
Equipped with a twin drive that can use two discs, it is possible to display two screens and exchange documents between discs
Optical Block KMS-250A (thanks defor)
Content adapted from: Sony press release (Japanese) ecat page. ecat page. (MiniDisc Wiki mirror)
Manuals
Repair
Photos
Have photos or data to add? Edit the page! We do not accept contributions via email.
Additional specifications and references
| Web Md | No (not NetMD) |
|---|---|
| Mechanism | sony_pdmd-77 |
| Pickup | kms-250a |
| Manual | User manual |
| Region | Japan |