A liquid developer includes a carrier liquid having insulation property, colored particles, and an organic high molecular compound. As this matter is eliminated, the pressure drop is decreased and the heat exchange efficiency is increased. , and water, wherein the total amount of the solid component contained in the recording ink is equal to 8. The present invention provides an image signal recording system which is capable of detecting a write data transfer rate of each kind of PC card for inhibiting full-motion picture data recording or selecting a write data transfer rate meeting the detected transfer rate, thereby accomplishing above object. Finally, a stateful wizard can be provided which can reduce the complexity of the migration by providing a dashboard to the migration process.