Record mode display

Here we can see an example of the default live display view, the center brackets indicate the auto focus area. Information overlaid in this case:

Flash cancel, 1600 x 1200 resolution, Standard JPEG mode, Single Drive with 107 frames remaining (at this resolution / quality combination).

Here we're already half-pressed the shutter release and are ready to shoot. Notice the solid white dot beside the remaining frame count, this indicates a good AF lock, it would be red if the AF could not lock. Also note the handshake icon indicating that this shot may suffer from blur if the camera is not supported by a tripod. If enabled a preview of the shot is shown immediately after depressing the shutter release. After this the camera returns to the live view mode (above).
Example of movie clip mode, you can record a maximum of 35 seconds in any one clip. Audio is also recorded. Example of audio record mode, you can record up to 90 seconds of audio annotation.

Play display

Switching to play mode immediately displays the last image taken. The DiMAGE X does not make use of a 'rough image', instead you have to wait a second or two for it to load the image before it is displayed. Here we can also see: the time and date the image was taken, filename and frame count. Press the display button to remove all overlaid information.
Press display again to switch to the 3 x 2 thumbnail index view. Here we use the 4-way controller to navigate around the images.  

Press the zoom controller towards telephoto to magnify the displayed image (up to 4.0x). Once magnified to the desired level simply press the enter (dot) button to scroll around using the 4-way controller.
Via the play menu it's possible to 'attach' audio clips of up to 15 seconds to each image. It's also worth noting that the play menu is transparent, so when choosing options such as delete you can still see a portion of the image 'behind' the menu.