How to Repair MTS or AVCHD Videos That Won't Open

Kelly Sherawat updated Oct 08, 26

3 min(s)

If an MTS or AVCHD video will not open, do not assume the file is corrupted immediately. AVCHD footage can depend on the original camera folder structure and a format-aware import workflow, while some apps may not handle the media correctly when individual .MTS files are pulled out and opened directly. First check whether the problem is import or compatibility related. If the same MTS file still fails in software that supports the format, file corruption becomes more likely.

An AVCHD or MTS videos won't open from Reddit scenario shows this distinction clearly: the footage came from Panasonic camera media, the user opened the AVCHD package to reach the MTS files, and the clips would not open in editing software. In a case like this, the first question is whether the AVCHD media is being imported correctly before treating the files as damaged.

Why MTS or AVCHD Videos May Not Open

MTS files are commonly used inside AVCHD camera media. The visible .MTS clip is only one part of that recording structure, so opening or importing a single file outside its original AVCHD package can behave differently from importing the camera media as intended.

If you are working in Premiere Pro, try browsing and importing the original camera media through Adobe's official Media Browser workflow before attempting file repair. Adobe recommends Media Browser for browsing, previewing, and importing media, particularly file-based media with structured folders.

Key Point:

If the MTS video opens or imports correctly through a compatible application or the original AVCHD structure, the file does not need repair. The problem was the playback or import workflow.

Check Whether the MTS or AVCHD File Is Actually Corrupted

If the correct import workflow does not solve the problem, use the file's behavior to decide whether corruption is a realistic explanation.

Does the Video Need Repair?

Other MTS clips from the same camera open normally: the format itself is supported, so a single file that still fails is more likely to be damaged.
None of the AVCHD clips open in one application: check that application's format support and import method before repairing the files.
The file is 0 bytes or unexpectedly small: important video data may be missing, and file repair cannot recreate footage that is not present.
The MTS file has a plausible size but fails in multiple applications that support AVCHD/MTS: file-level corruption becomes more likely, and video repair is a reasonable next step.

Repair the MTS or AVCHD Video with Wondershare Repairit

When an MTS file still will not open after compatibility and import issues have been ruled out, Wondershare Repairit Video Repair supports MTS and M2TS video repair and can be used to fix supported corrupted video files.

Step 1
Add the damaged MTS video. Open Repairit Video Repair and import the MTS or M2TS file that will not open.
Step 2
Start the repair. Click Repair and let Repairit analyze and repair the damaged video file.
Step 3
Preview and save the repaired video. Check that the video plays through the expected duration with normal picture, audio, and synchronization before saving it. If the normal repair cannot restore a severely damaged MTS video, Advanced Repair can use a valid playable sample recorded by the same device and in the same format.

Repair Limit:

Repair can fix damaged video structures when usable media data is still present, but it cannot recreate video data that is missing from the MTS file. If the file is empty, severely truncated, or was incompletely recovered, the underlying data problem must be addressed first.