{
  "slug": "longitudinal-recording",
  "term": "Longitudinal magnetic recording",
  "aliases": [
    "LMR"
  ],
  "definition": "Magnetic recording where bit magnetization lies in the plane of the disk, largely replaced by PMR for capacity.",
  "note": "",
  "status": "eol",
  "advantages": [],
  "limitations": [
    {
      "text": "Areal density growth stalled as grain size approached superparamagnetic limits.",
      "citationIds": [
        "c1"
      ]
    }
  ],
  "related": [
    "pmr",
    "cmr"
  ],
  "supersedes": [],
  "supersededBy": [
    "pmr"
  ],
  "firstSeen": null,
  "lastSeen": {
    "date": "2005",
    "citationIds": [
      "c1"
    ]
  },
  "citations": [
    {
      "id": "c1",
      "title": "Perpendicular recording",
      "url": "https://en.wikipedia.org/wiki/Perpendicular_recording",
      "accessed": "2026-03-26"
    }
  ]
}