Cartridge reuse occurs when writing from BOT file sequence 1 with a disposition of DISP=OLD or DISP=SHR. When the mounted cartridge is encrypted, OPEN processing will set the recording technology to EEFMT4 and pass the volume's existing key labels and encoding mechanism to the drive. Additionally, when the mounted MEDIA9 or MEDIA11 cartridge is Performance Scaled or Performance Segmented OPEN will ensure the cartridge maintains the same characteristic on reuse.