For versatility and reliability, the EOS C300's recording and terminal specifications are completely compatible with the prevailing industry standards. It records to CF cards through dual slots. From a cost and reliability standpoint, CF cards have no equal. Solid state, and easy to find, 2 hours of 4:2:2 50 Mbps footage can be recorded on two reusable and hot swappable 32 GB CF cards with ease. It's even possible to record to two CF cards simultaneously and relay-record for uninterrupted shots and copy from one card to another.