Tracknumber in vorbis comment is a sting.
What is the preferred way for numbering, with or without a leading zero?

1, 2, 3, 4, …, 99, … 999

01, 02, 03, 04, …, 99
001, 002, 003, … 999

Without. Padding with zeros is appropriate when displaying the data, not when storing it.

Thanks, I also thought so.

It honestly doesn't matter. Pick your own personal preference.

I'd like to point out that CDs only go up to 99, that being said, I prefer the 01, 02, method. But I don't know what the actual standard is, or even if there is one.