A multimedia apparatus, comprising: a touch screen; and a control unit configured to: play back a video content; control the touch screen to display the video content along with a progress bar and a control item to control playback of the video content, the progress bar having a position indicator which is configured to progress along the progress bar while the video content is being played back according to a user input received via the control item, and indicate a playback position of the video content, which is a position of a currently displayed video content; change a playback position of the video content in response to a user touching the position indicator and moving the position indicator along the progress bar; in response to a user touch maintained for at least a predetermined time at a second position of the progress bar other than a first position of the progress bar where the position indicator is located, replace the progress bar with an enlarged progress bar corresponding to a portion of the video content associated with the second position of the progress bar, wherein the playback position of the video content is changed to the second position from the first position; and change the playback position of the video content in response to the user touch being moved along the enlarged progress bar, wherein a playback duration of the video content corresponding to a defined display length of the enlarged progress bar is shorter than a playback duration of the video content corresponding to the defined display length of the progress bar such that a user can precisely control the video content through the enlarged progress bar. a touch screen; and a control unit configured to: play back a video content; control the touch screen to display the video content along with a progress bar and a control item to control playback of the video content, the progress bar having a position indicator which is configured to progress along the progress bar while the video content is being played back according to a user input received via the control item, and indicate a playback position of the video content, which is a position of a currently displayed video content; change a playback position of the video content in response to a user touching the position indicator and moving the position indicator along the progress bar; in response to a user touch maintained for at least a predetermined time at a second position of the progress bar other than a first position of the progress bar where the position indicator is located, replace the progress bar with an enlarged progress bar corresponding to a portion of the video content associated with the second position of the progress bar, wherein the playback position of the video content is changed to the second position from the first position; and change the playback position of the video content in response to the user touch being moved along the enlarged progress bar, play back a video content; control the touch screen to display the video content along with a progress bar and a control item to control playback of the video content, the progress bar having a position indicator which is configured to progress along the progress bar while the video content is being played back according to a user input received via the control item, and indicate a playback position of the video content, which is a position of a currently displayed video content; change a playback position of the video content in response to a user touching the position indicator and moving the position indicator along the progress bar; in response to a user touch maintained for at least a predetermined time at a second position of the progress bar other than a first position of the progress bar where the position indicator is located, replace the progress bar with an enlarged progress bar corresponding to a portion of the video content associated with the second position of the progress bar, wherein the playback position of the video content is changed to the second position from the first position; and change the playback position of the video content in response to the user touch being moved along the enlarged progress bar, wherein a playback duration of the video content corresponding to a defined display length of the enlarged progress bar is shorter than a playback duration of the video content corresponding to the defined display length of the progress bar such that a user can precisely control the video content through the enlarged progress bar.