Products › EDP Tri-Optic 1700-006 (LTO-6) Horizontal Barcode Label Image 1 of 1 EDP Tri-Optic 1700-006 (LTO-6) Horizontal Barcode Label $0.00 Tri-Optic (EDP) horizontal 6-character barcode label with L6 media ID for LTO-6 cartridges in tape libraries. Add To Cart Added! Tri-Optic (EDP) horizontal 6-character barcode label with L6 media ID for LTO-6 cartridges in tape libraries.