What does it mean when the title names of the first few mp3's in a large folder of mp3's are a row of little code boxes?.. Does that indicate that the mp3 file is malware corrupt..?
no that's unicode. copy + paste the filename into firefox or google to see the missing characters.
Or you could do like I do, and use https://www.fourmilab.ch/webtools/unum/
also relevant: https://www.reddit.com/r/linuxmasterrace/comments/10pxwv0/how_to_fix_these_weird_squares_or_missing_unicode/
also I am the author of this renaming script that works like `detox` https://github.com/kanliot/foulnames
It's very useful, especially if your filename contains newlines and stuff.