My daughter's disney dvd player wont play disney dvd's any ideas?

I believe it could be that you are running your DVD player into the VCR then to the TV?? DIsney (and some other DVDs) are "smart" DVDs and won't play correctly if the player detects the VCR. It thinks you are trying to pirate/copy the DVD. I had to buy a special device from Radio Shack that let me run the DVD player through the VCR and still play DVDs; costs about $15. (Our TV wasn't stereo if you can believe it so we were running it through the VCR to enable stereo, or something like that, per my husband.) Just a guess!

I would suspect dirt, either on the disc itself or in the player. The discs and laser head need to be clean to do their job properly. If they are too dirty to operate correctly the machine simply gives up trying as though there were no disc loaded at all.