hi i have a technics mini disc player i have had it over 3 years but only used it a few times to in perfect condition , i tried to use it last week for the 1st time in ages when i put disc in and it reads disc it stops and says emergency stop and disc comes back out ive tried doing it time and time again but cant figure out whats going on it worked the time before but this problem is happening all the time. Can anyone think if there is something that could be causing this problem