How can i list all tracks with missing zeros in track number?
There's no way to test for tag length, so the best I could come up with is the following virtual tag:
$If($Left(<Track#>,1)=$Right(<Track#>,1),Yes,No)
...on the premise that a single digit track number will give the same result if checked from the left as the right. If you display this in a column and sort by it, all of your single digit tracks will appear together (under "Yes"). You'll still have to check the tracks manually though, because this will also match on track numbers 11, 22, 101 etc.
How do i have to set "organizing files (STRG+R)" to automatically add leading zero to track number?
There's actually three ways you can do this. You could create a virtual tag:
$Pad(<track#>,2)
which won't update your tags, but just displays the extra zero when you use it in MusicBee.
To update the value in the tag itself:
You can use Tools > Tagging Tools > Renumber Tracks, which includes an option for including leading zeroes.
Finally, under Preferences > Layout > Configure Fields there is an option for setting the disc-track# formatting. If you use "00" as the track number it will be padded to two digits in at least the File Organiser and probably some other places too.
Hope one of these is useful!
How can i list all tracks with missing zeros in track number?
There's no way to test for tag length, so the best I could come up with is the following virtual tag:
$If($Left(<Track#>,1)=$Right(<Track#>,1),Yes,No)
.
A better virtual tag would be $If($Pad(<Track#>,2)=<Track#>,true,false) which will show true for tracks where <Track#> are padded to 2 digits and false otherwise. Change the number 2 in the virtual tag to check for tracks padded with more zeroes.
But then, this is unnecessary if you go with the first or third option provided by Zak, because then it doesn't matter what is stored in your files, the presentation will be consistent anyways with the setting of your choice.