As I understand it, the human-readable representation of barcodes sometimes put a ">" at the end, e.g. like "5 030930 027902 >", but this isn't actually part of the code (i.e. a barcode scanner wouldn't see it, and a barcode for "5 030930 027902" would look exactly the same). It's put there just for padding purposes, to make sure the code will scan properly.

This Discogs thread explains it quite well: https://www.discogs.com/forum/thread/232167