Their professional CD audio recorders only take CDRs with special "generation bits" in some desperate stupid attempt to reduce copying even though everybody else's CD recorders don't care about the bit.

They invented their stupid proprietary memory sticks even though SD cards were cheaper and more readily available.

The power plugs for their devices of course are not barrel plugs so you can't replace them with a cheap and easily available replacement.

They're complete assholes to their customers.