1. A data recording and reproducing apparatus comprising: a memory; a signal processor which captures images, processes the captured images to generate image data, and generates an image file comprising the image data; a speech recognition unit which recognizes first speech, which is related to the image data, and converts the first speech into first text data; a controller which generates first metadata using the first text data and adds the generated first metadata to the image file, wherein the controller generates a folder having a name based on the first text data and wherein the controller stores the image file in the folder having the name based on the first text data; and a storage unit which stores the generated image file a display unit which displays an image from the captured images represented by the image data included in the image file or displays the first metadata along with the image, wherein the first metadata comprises a description tag which is generated using the first text data and a keyword tag which is generated by extracting keywords from the first text data, and wherein, when newly input second speech is converted into second text data by the speech recognition unit while the images stored in the image file are displayed on the display unit, the controller generates second metadata from the second text data and compares if the second metadata is different with the first metadata in the image file, and if the second metadata is different from the first metadata in the image file, the controller adds the second metadata to the first metadata in the image file.