Sorting audiobook mp3s

'The sorting is not in a numerical way as 001 is after (greater than) 010 for the player."

That doesn’t sound right. are you sure the first or second digit is the number zero, and not the letter O? i get the tracks in order, then use mp3Tag to autonumber them. When numbering manually or entering tags manually, one blank space that goes unnoticed somewhere will alter the sort sequence. That is why using an autonumbering function avoids these problems. I also  got some strange sorting of files until I started using the mp3Tag autonumber function.