No colour, can this be fixed?

It sounds like your problem isn't the dvd is stuck, since it seems to be spinning up, it sounds more like your ejection system has stopped working for some reason.
To fix either you are going to have to remove the outside case of the dvd player and expose the internal chassis. There are anywhere from 4 to 8 screws holding it on on the bottom and back of the unit, Make sure the dvd player is unplugged before you remove the cover.
Once you have the cover off, if the dvd is simply stuck, you should be able to see what the issue is; is it misaligned in the housing was it inserted incorrectly, are there in fact 2 dvds in the player, etc, etc. Gently remove the dvd and replace the case and enjoy.
If you can't see any reason for it to be stuck it may be the ejection system. The eject system will have a belt and sprocket system to move the tray or push out the dvd depending on the player. Make sure the belt is on the wheels correctly and that the sprockets mesh properly. If you can't see anything wrong try testing the ejection system with the case off.
Make sure you don't have any objects in or touching the dvd player, you don't want to short out any of the components if a screw fell into the dvd player onto the mother board, etc. Plug the dvd player back in, make sure you don't touch the inside and try to eject the dvd. Watch the ejection system and you should be able to figure out what is going wrong. Once you have figured it out unplug the unit and put the items back together. If you can see that something is broken then you will have to determine if you can have it fixed or if it wouldn't be cheaper to simply ditch that unit and purchase a new one.
Hope this helps.

The reset button is located at the bottom side of roku box near the HDMI port. Link to Start Guide item E http://wwwimg.roku.com/static/guides/Roku_2-QuickStartGuide.pdf

It's a system fault from the motherboard.I'm afraid you may need to replace it and in some instances,with the DVD ROM.

please see the chart troubleshooting. and fix it. God bless you

No sound

1. Check if the TV and Amplifier (if connected) is turned on and set correctly.
2. Check if the TV, DVD player and Amplifier are connected properly.
3. Make sure the TV, DVD player and Amplifier volume are not set to Mute.
4. There will be no sound output during Reverse Play / Pause / Step / Slow / Search.
5. If the DTS soundtrack is enabled in the DVD Disc Menu, but you are using Stereo Analog audio, the sound will not work. Try switching the soundtrack to Dolby 5.1 or PCM mode in the Disc Menu.

see the charts troubleshooting and fix it. God bless you

No sound

1. Check if the TV and Amplifier (if connected) is turned on and set correctly.
2. Check if the TV, DVD player and Amplifier are connected properly.
3. Make sure the TV, DVD player and Amplifier volume are not set to Mute.
4. There will be no sound output during Reverse Play / Pause / Step / Slow / Search.
5. If the DTS soundtrack is enabled in the DVD Disc Menu, but you are using Stereo Analog audio, the sound will not work. Try switching the soundtrack to Dolby 5.1 or PCM mode in the Disc Menu.

1. Disc is dirty or damaged. Clean the disc or try another disc.
2. Reset the color system of the player or the TV set.

Try a direct connection from the DVD player to the TV set, instead of via other components.

Simply, some DVD players just will not play certain discs. Especially copies of discs. If your having trouble with a movie that is made for release, ya know, one you buy at a store.....then make sure the disc is clean, no scratches, and loaded correctly. Also, maybe buy a disc cleaner disc for cd/dvd players. Lastly, remove any discs, turn off the dvd player, unplug it for a minute, plug it back in, turn on and load a disc. Hope this helps.

maybe there is a problem with you tv

Sounds like a problem with the video hookup. What video connection are you using, composite, component, or digital?

Check all your video cables to make sure they are tight. Make sure all your settings are correct.

It sounds to me as if you are not using the correct video standard, IE: There are two or more principle "Standards" PAL, NTSC, & SECAM... now if the the input you provide is say, PAL and your player etc is set to say NTSC, the pic will play but ya won't have sound and the pic will have no colour.. ie: look sorta B/W. so try your "Settings" and make sure it is correct.