Abstract: For the sake of elevating significantly user's flexibility in edits of video signals, the memory control device for video editors comprises a storage means for storing at least one or more of title data composed of video image data representing title signals and key data used for controlling the title signal; a first memory for storing video image data and which is provided with a data reading means for reading the video image data so as to be capable of displaying the data in the form of a video image; a second memory for storing a key data and which is provided with a video image controlling means for controlling a video image to be displayed on the basis of the key data read; a specifying means for specifying a memory into which is to be written the title data; and a writing means which reads the video image data and the key data of title data to write both the data read into the first memory and the second memory, respectively, in the case when the first memory is specified by the specifying means, while