MP3 Help

[m0hxt]

I have been copying some CDs onto my MacBook Pro 2015 and have saved them as MP3 files. Then I have formatted a USB stick to flat 32 so that I can use it on an android stereo in my car. But when I put them in to the stereo there is a duplicate of every song that will not play and a copy that well but on my Mac I can only see one copy of each. My question is how can I stop this from happening and how can I delete the file that does not work when I cannot even see it.Thank thank you all for any help

 

[FreakinEurekan]

In the Finder, with the flash drive selected, press Command-Shift-.(period) to "Reveal hidden files" & see if you can find the dups that way.

If it IS creating hidden duplicates, could be any variety of reasons for that. But at least you'd see them & be able to delete there.

 

[chown33]

The unplayable "duplicates" are most likely invisible files whose name starts with "._". Each one holds the metadata, extended attributes, and so on for its corresponding file.

Here's a MacRumors thread on it:

Is there a way to stop these "._" files?

I had my external HDD connected to my MBP and used it for a while. When I connected it to my Windows laptop, I found that there is a 4KB file of every file in there with a ._ prefix. I deleted them all but is there a way to prevent this from happening?

forums.macrumors.com

I found that with search terms:
disable apple "._" files

The file-format that produces & manages "._" files is called AppleDouble:

AppleSingle and AppleDouble formats - Wikipedia

en.wikipedia.org