LUMIX cameras (GH5S and similar) sometimes leave behind a .mdt
file instead of a finished .MOV — a cut recording from a battery pull, a card swap mid-take, or
a crash. The footage is still on the card. It's just missing the piece that tells a player how to read it back.
Drop the file in your browser. Preview in seconds. Nothing uploads.
LUMIX .mdt files carry H.264 video (often 4:2:2 10-bit) and uncompressed twos
PCM audio, cut off mid-write with no index telling a player where the frames are. The data itself is intact —
it's rebuilt by walking the file's own structure rather than guessing.
One thing .mdt needs that Sony's formats don't: a short donor clip — a normal, working recording from the same camera and settings — to supply the codec parameters the cut file lost. A few seconds is enough, and it isn't uploaded either.
LUMIX GH5S and similar bodies that write .mdt for interrupted
recordings. If yours isn't listed, drop the file in anyway — the preview is free to try either way.
See every supported camera and format on the cameras page, or read the FAQ for how the recovery actually works.