M2V is usually an elementary MPEG-2 video stream with no audio or general container metadata.
What this converter actually supports
Convertr uses the deployed FFmpeg toolchain for published audio and video routes. A container such as MP4, MOV, MKV, AVI, or WebM can hold different codecs, so the file extension alone does not guarantee that a particular player will accept the contents.
Convert or wrap M2V as MP4 when a standalone playable file is needed.
The public upload limit is 1 GB. Convertr does not reduce dimensions, duration, resolution, or output quality merely to manage worker load.
Quality and format limits
Keep the original dimensions and frame rate unless you intentionally need a smaller result. Remuxing compatible streams avoids re-encoding; changing codecs is lossy, so repeated conversions should be avoided.
There is no audio to preserve unless it is supplied separately, and raw timing can be incomplete.
Published M2V inputs
These links come from the active conversion catalog, not from a generic list of possible formats.
No inbound route is currently published.
Published M2V outputs
Choose one of these implemented routes; a listed extension is not a promise that every codec variant will decode.
Check that the file opens in its original application, is not encrypted or DRM-protected, and really matches its extension. A damaged header, unsupported internal codec, missing linked asset, or mislabeled file can fail even when M2V is generally supported. Try a different published target only when it fits your goal; changing the extension by hand does not convert the file.