Sounds like it could be a million things that have already been talked about.
1 slipping disc or pad.
2 Dying laser.
3 dirty laser.
4 dying spindle motor.
5 belts somewhere to do something, usually these are for loading.
6 Tracking and gain, you mess up you fry the laser.
You need to find out what make this is, or if its a clone of another player to figure out if you can tinker to get it really working.
Also does this have CD playback, try a CD to see what it does then go from there.
Found an old topic about the same player. Search is our friend
Samsung DV-5000 playerIf your player is like this then it may be a dying laser or who knows. Check it out hope it helps, but not much info on this player so
unfortunately you won't get as much help to fix it.