Large format analog multitrack machines can have up to 24 tracks on a tape two inches wide which is the widest analog tape that is generally available. Prototype machines, by MCI in 1978, using 3" tape for 32 tracks never went into production, though Otari made a 32 track 2" MX-80. A few studios still operate large format analog recorders, though much of the time their use is only to copy sounds onto a modern digital format. Maintaining these machines has become increasingly difficult as new parts are rarely available. New tape is still available but prices have risen significantly in recent years.