Mp3tag doesn't recognize a few tracks

I am not a power user. What are some potential file sharing hosts?

One of them is

Upload your file "Hummingbird.m4a" and copy & paste the URL link to this file in your next answer.
Then we can download this file and analyze it.
The file itself will be deleted automatically in about 7 days.

Here's the link

I just loaded your Hummingbird track into MusicBrainz Picard and I get this:

The output of ffprobe is:

[mov,mp4,m4a,3gp,3g2,mj2 @ 000002557d9bac80] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible!
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002557d9bac80] moov atom not found
Hummingbird.m4a: Invalid data found when processing input

My VLC does not play this file.

I would say that this file is corrupt and unusable. I can not tell you a way to fix this file other then re-rip or re-download it from your source.

Foobar2000 says something similar:

`Error: Unsupported format or corrupted file (invalid or incomplete data)
1 item could not be correctly decoded.`

That file is fishy, it contains headers for EXE files and lots of other corrupted data. It doen't seem to be contiguous so maybe from a corrupted drive?