This invention is an MPEG decoding apparatus for decoding a compression-coded image data stream, the apparatus including a motion compensation circuit and error map table holding means for holding an error map table with respect to a decoded frame to be referred to in performing motion compensation. A flexible planar disc extends around an inlet to the flow passage for engaging the surface to be cleaned. The invention provides interfaces to create, locate, extend, and enumerate well known folders. A voice browser is communicatively coupled to the audio processing unit. Different portions of the electrodes may be surrounded by sleeves. Armrest supports may be positioned on exterior sides of the peripheral supports to form an armrest and provide additional lateral stability.