Abstract: According to the described techniques, apparatus and systems, a multimedia data processing device can include an input unit to receive media data from input devices. A data compression and information generating unit can compress the received media data and generate information based on the received media data. A buffer can temporarily store the compressed media data and generated information received from the data compression and information generating unit as a packet that includes a data packet and an information packet; output the temporarily stored media data packet and the information packet to be stored in an external storage device; and store a file offset that identifies a location of the information packet stored in the external storage device. A file format generating unit can generate a media data file format based on the information packet stored in the external storage device identified by the file offset stored in the buffer.