Toshoba tv/dvd combo. won't play many dvd's. makes clicking sound as it tries to load movie?

I don't understand your problem.
Is it the TV or is it the DVD? You say you tried other dvds and the problem is still there. Looks like the TV is the problem. Sometimes it's hard to help people when they only mention on screen issues. How can first DVD say 'incorrect disk' and then another dvd, and another still say 'incorrect disk'? It just doesn't seem to make sense. Is the contents on the disk a computer recorded movie, film or home movie? If so, you have to record the film on the disk with a format that accept the DVD. Could the DVD be a Blu-Ray, can it play a number of video formats, DVD, DivX, KviD DVD, etc.? Try first with a purchased movie DVD disc, if it doesn't work, then the DVD is faulty. DVD players these days are meant to play a wide range of video format, including CD discs. If you have an old DVD player, you may not play latest discs. But if the DVD is incorporated with the TV, then you have to insert a new movie and see if it plays. Go to an appliance or TV DVD store and talk to them. Or you can purchase a new movie and insert it in. If it doesn't work, you can always return it. As you said, you've tried different DVDs, sounds like it is a separate DVD player. If so, try other movie discs. I get the same warning only when I insert discs with movies I recorded on my computer, such as Pinnacle video editor.

hi there.
go to this link and see if it helps you get it sorted.
How to Fix DVD Player When the Drawer Won Open Techwalla com .
or this one.
DVD tray will not eject the movie Google Search

did you try to get a dvd cleaner to clean out your dvd player.

I have the XBR616 zenith combo.
If your dead set on initializing your dvds, I can try to
do one in my dvd player to see if it works, then send it back to you. I can't guarantee anything, my player is a bit fussy, but I don't mind helping you.

If so, let me know

have you tried cleaning the disc you are wanting to play

Sounds like the unit is bad, or set to the wrong Regional Code. Its not easy to set the regional code and it varies by model. You are better off buying a new DVD player given they can be found for under $30.

The parental code is :
1,2,3,4
When the parental block comes up hit play, then type in the code and hit play again.  It should be all set.  

When you press Play, do you see that shown on the screen? If there are extra inputs to the TV, make sure that you aren't switched to one of those. SOmetimes they're called A/V 1 or something like.

Hope this helps, and please rate my advice, good OR bad.

Good luck!!

Clean the pickup using a commercial cleaner disc.That's the only quick,cheap fix.

TRY PUSHING the ENTER BUTTON on remote TO START MOVIES THAT DONT ALLOW MOVIe to start when play button is pressed.