{
  "slug": "bd-r-lth",
  "term": "BD-R LTH",
  "aliases": [
    "low-to-high BD-R",
    "BD-R LTH TYPE"
  ],
  "definition": "BD-R LTH is an organic-dye recordable Blu-ray type whose written marks have higher optical reflectivity than the unrecorded material.",
  "note": "JVC identifies LTH as requiring explicit device support, sometimes enabled by firmware [jvc]. A Blu-ray label alone does not establish compatibility with this recording type; incompatibility is not evidence of aging.",
  "status": "unknown",
  "advantages": [],
  "limitations": [],
  "related": [
    "bd-r-htl",
    "blu-ray-archive"
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-15",
  "citations": [
    {
      "id": "jvc",
      "title": "JVC (7 October 2008): BD-R LTH TYPE announcement, terminology and compatibility notes.",
      "url": "https://www3.jvckenwood.com/press/2008/bv-r130lw.html",
      "accessed": "2026-10-15"
    },
    {
      "id": "analysis",
      "title": "Hesela: optical-disc lifetime estimates and format-specific evidence",
      "url": "https://hesela.com/analyses/optical-disc-lifetime-estimates/",
      "accessed": "2026-10-15"
    }
  ]
}