Abstract: A method of providing file data for a media file of a pre-determined format from a file system comprising a file record database and a data store, wherein the media file corresponds to a programme consisting of a plurality of segments, and wherein the segments included in the programme are dynamically determined. The method comprising the steps of receiving details of the programme including the duration of the programme, and determining the layout of the media file in the pre-determined format from the received details of the programme, the layout including locations for essence data within the file. A file record for the media file in the file record database is then created. In response to a request for the location of essence data within the file, a location given by determined layout of the media file is returned. Further, in response to an instruction that a segment is to be included in the programme, essence data corresponding to the contents of the segment is obtained.

Abstract: There is disclosed patient ceiling-hoist carriage for the transport of a hoisted patient. The patient ceiling hoist carriage includes an electrically-operable motor, a carriage body, a patient ceiling-hoist connector connected to the carriage body and with which a patient-ceiling hoist is engagable, and a bogie. The bogie has a rail-engagement element and a baseplate which is connectable to the carriage body, the rail-engagement element having two axles which are in drivable engagement with the motor, each axle being in engagement with at least one rail-engagement wheel to allow the patient ceiling-hoist carriage to be driven along an associated patient ceiling-hoist carriage rail. The configuration such that, when the patient ceiling-hoist carriage is in a region of transition between two adjacent patient ceiling-hoist carriage rails, the two axles provide traction on both the adjacent patient ceiling-hoist carriage rails.