It's not strange. Sorting the list requires "a lot"a lot of memory, which may not be available on small embedded systems like MP3 players. You need a big enough array to store all the filenames before sorting them.
Therefore those systems just list the files in whatever order the directory entry stores its child items and remove the need for the array, since now you just load a single filename instead of the full directory listing.
You can manually sort the files by moving them to another directory in the order you want
If the storage medium is a FAT-formatted USB thumb drive, then the files will be enumerated in a complex order based on the order in which files are created and deleted and the lengths of their names. But the easy way out is simply to remove all the files from a directory then move file files into the directory in the order you want them enumerated. That way, the first available slot is the one at the end of the directory, so the file entry gets appended.
What order does the DIR command arrange files if no sort order is specified?
Or just use the tools made for this sorting purpose
