Magnetic recording medium and a tape guide in a cartridge

Magnetic recording medium with unit minute recording portions

Magnetic recording tape cartridge

Magnetic recording tape cartridge

Magnetic recording tape cassette

Magnetic sheet cassette device

Magnetic tape backup device for use with a floppy disk drive

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic tape cartridge

Magnetic Tape Cartridge

Magnetic tape cartridge

Magnetic tape cartridge and system

Magnetic tape cartridge compatible with disk drive and tape driv