[ DVD-RAM WRITERS // IDENTIFIED MODEL ]
Panasonic LF-M821
DVD-RAM read/write; DVD-R/RW, DVD+R/RW and CD read. Ratings below are model-specific; suffix, firmware and media can change compatibility.
IDENTIFICATION: Compare full model, suffix, OEM part number and firmware with the cited manual before installing, servicing, or using the drive for preservation reads.
Documented specifications
| Catalog subcategory | DVD-RAM writers |
|---|---|
| Exact model | Panasonic LF-M821 |
| Read/write formats | DVD-RAM read/write; DVD-R/RW, DVD+R/RW and CD read |
| Rated speeds | DVD-RAM up to 5×; DVD-R up to 8×. Maximums are media- and mode-dependent; sustained rate is not guaranteed. |
| Interface / mechanics | Internal 5.25-inch ATAPI/IDE. Consult the named service/product manual for mounting drawings; dimensions are not repeated where the cited model literature does not establish them. |
| Host / software compatibility | Use media listed in Panasonic compatibility table; confirm cartridge style and host packet software. |
| Model distinctions | LF-M821 is Super Multi; supported cartridge/disc types are manual-specific. |
Use, compatibility & preservation
- Use media listed in Panasonic compatibility table; confirm cartridge style and host packet software.
- LF-M821 is Super Multi; supported cartridge/disc types are manual-specific.
- For imaging, record exact drive/firmware, interface controller, host OS, application version, disc format and any read or verification errors; retain checksummed image copies and logs.
- Handle discs by edge or center hole; keep them in cases in a cool, dry location away from direct sunlight. Avoid adhesive labels, abrasives and undocumented polishing/solvents.
Read support is not write support. Verify the full unit label against the manual and measure the actual bay/caddy when a fit drawing is not available.
Sources
- Panasonic Panasonic LF-M821 product manual / specificationsManufacturer support/product documentation locator for the exact named model. Match manual revision and product suffix to the label before applying a specification.
- Ecma-330 — 120 mm DVD-RAM disksApplicable format/standards reference; it describes the disc format, not a guarantee that every drive revision implements it.
- Library of Congress — CD-R and DVD-R/RW longevityPreservation guidance for recordable optical media, not drive product specifications.