Dealing With Zeros in Filenames

[ms6676749]

M4A tag spec stores %track% as integers not strings like MP3/FLAC, so leading zeros are not possible if that’s the file you are working with.

Leading zeros are not possible with automatic and manual track numbering

It's unfortunately not possible with the MP4/M4A format. Track numbers are stored as integer values there (basically a number) in the file instead of a numeric string (like "01") as with MP3 or FLAC. If you want to use leading zeros when renaming files, you can always use $num(%track%,2) instead of %track%

If you want to do tag → filename, you can try: $iflonger(%track%,1,%track%,$num(%track%,2))

Basically, if the %track% length is longer than 1 (e.g., two digits), then %track% will be used, if %track% is 1 digit, then a leading zero will be prepended to %track% in the filename.