An irritating problem with a CD player is when the CD skips. This involves either entire tracks on the CD being skipped over, or just part of a track being played before the CD "jumps" to another part. The immediate conclusion could be that the disc is faulty, but this isn't always the case. Try playing the CD on another player to get a clearer picture of the problem.
Similar to a stylus getting stuck in a vinyl record's groove, a CD sometimes sounds like it's not moving. Often it is a case of cleaning the disc to solve this problem, but if this happens on many discs, more likely it is a problem with the CD player.
The primary problem that could affect your player is not being able to open it to put a CD disc in. Never try to force open a CD player while it is switched on. Instead, press the "Open" button on the CD player several times. Additionally, if a CD player hasn't been cleaned for some time, dust can accumulate on its lens. Early warning signs include if the CD acts erratically on that player, but not on others.
A CD sometimes spins continuously on a player, with the player playing no track at all. This often can be rectified by removing the CD and placing it back in the player again. If the spinning persists, clean the CD and try again. If the problem still remains, try other CDs that play on other players without a problem. If the spinning problem still persists, there is a problem with the player.