Disc inserts but doesn't spin - Marantz Audio Players & Recorders

I think local disc cannot read your DVD. Put quality disc into your DVD.

I'll need some more information to truly help you,
Is the disc spinning when you put it in (can you hear it trying to read)
What does the xbox dashboard say when a disc is inserted? Are there any error codes or "no disc inserted" message?
Try another game disc if you can. Sometimes discs get scratched or dirty, in which case you can clean it or have it professionally cleaned.
If that doesn't work, Try cleaning your laser lens
There are several places that will clean your laser lens, or if you're a little more technologically inclined, You can open your system yourself and clean the lens with some alcohol and a q-tip.
If none of the above works, you may need to have your xbox professionally repaired.

The pladder motor that spins the disc is open, or the laser pickup is defective, the whole laser assembly would need to be replaced, not cost effective to repair cheaper to buy.

The pladder motor is bad, "disc sits on top" most be replaced to regain normal operation.

Hello
Check whether the disc inserted into the player spins. If it does not spins, replace the sled motor.

Then it is time to replace this player the Laser reader is defective or the disk doesn't spin due to a defective drive motor, in most cases they don't even sell parts for these players and they are not repaired unless under warranty.

Hello
If it does not play the cleaner disc, just inspect whether the disc inserted in spins inside it. You can check this by open the upper cover of the player, and inserting a disc into it. If inserted disc spins inside, and the player won't read it, the fault is with its laser pickup unit, and it should be replaced with same type and number.
If the disc dos not spins, the fault is with the sled motor [the motor that spins the inserted disc], has damaged, and should be replaced. OK.

The most likely situation you have here is that the cd drive lens isn't reading, just because with a gamecube, it relies on that lens to detect if there is a disc inserted. Your best bet is to try and clean the lens with a que tip and some rubbing alcohol. Be gentle, only very gentle wipes back and forth in a circular motion, then dry it the same way. If that doesn't work, I can give you some tips on how to rip the thing apart and see if it is a connection inside somewhere

Hello
There are mainly three motors for most of the DVD players. One to spin the disc we insert in, other to load the laser pickup unit to-and-fro inside it to read the disc and an other one to load the tray mechanism 'in-out'. According to your description, the disc spins inside, and you can hear its spin. So motor which spins the disc has no trouble at all I should say. Then comes to the second motor that moves the laser assembly inside it. If it do not work, the laser pickup unit won't move and no reading will take place and 'No Disc' display will be the result. The last chance is with Laser Pickup Unit itself. Just get this unit repaired by any well experienced service technician or by the authorised service center, because, there are special tools to open this unit. As it is a compactable one, more care should be given to it while repairing. Suspect the second motor I described earlier, and the Laser Pickup Unit. OK.

Hello
If your DVD player shows no disc, even a disc is inserted, try to clean its laser head assembly, by inserting a cleaning disc in it and play atleast three times. Take it ejected each time before you play it. If it does not helps, open the top cover of your DVD player, insert a disc, and notice if the disc spins or not. If disc spins, and not reads, the laser picup unit of your DVD player is faulty, and should be replaced with same type and number. If its stripe wire connected between pickup unit and main board is detachable, try repalcing the strip wire first. In some occations, bad strip wire will show this type of problem.
If disc does not spins, the sled motor [the motor that used to spin the disc at high speed], is damaged and shoud replace it. OK.