DESC: The unit audibly plays tracks during fast-forward and fast reverse, making it easy to search for a particular part of a song. Digital Filter removes unwanted digital artifacts from the signal while it is still in the digital domain, allowing the use of gentler-sloped, better sounding analog filters. Digital Optimum Servo Control enables the CD player to determine each disc's reflection rate and the modulation rate of its pits, enabling the player to set the ideal servo gain for each disc. DOSC also adjusts servo gain and balance when it encounters vibration, scratches, dust, or fingerprints, reducing mistracking and skipping. Disc Naming lets the user program a title for each disc. The CD player reads the disc data and displays the name in its LCD display. A disc transport mechanism uses soft butyl rubber insulators for exceptional shock resistance, along with ceramic-injected silicon oil that absorbs jarring vibrations even at extreme temperatures, reducing skipping and mistracking.