Labels - LTO
The label indicator (L1, L2, L3, L4) at the end of the number sequence enables the drive to identify the type of cartridge

LTO HP Galactica/Surestore 100GB Hot Vertical	LTO IBM 200GB Hot Vertical	LTO IBM 100GB Hot - Horizontal
		LTO Qualstar Hot - Horizontal

Cleaning Cartridge Labels

LTO Universal Cleaning Cartridge

LTO 1 Universal Cleaning Cartridge

LTO 2 Universal Cleaning Cartridge

LTO 3 Universal Cleaning Cartridge