mp4tags corrupts files

[Kent]

Hi,

Usually mp4tags works fine, but sometimes it fails badly.

I tried to update existing mp4 video file title name, with mp4tags program.
But, it corrupted the mp4 file and exits with error message:

ReadAtom: "file name.mp4": atom type is suspect

After this, vlc or any other player can't play this video file anymore.

What steps will reproduce the problem?
(I found link to this video from google groups, where another bug is reported related to mp4tags, although on Windows).

1. Download this specific MP4 file:

https://s3.amazonaws.com/bizmodeller/Staging/test.mp4

2. Set mp4 file title
mp4tags -s "new title" test.mp4

you get error message:
ReadAtom: "test.mp4": atom type is suspect

After this, mp4-file is not anymore playable.

The mp4v2 package version is 2.0.0~dfsg0-4,
on ubuntu 16.04 lts

Thanks.