On my GVA 18.5 tv I have a problem with the DVD player. It rejects the dvd, after close it goes to loading and then straight to open. I keep trying and after 10 or so times, it stays in.

SOURCE: DVD tray keeps opening and closing?

this sounds like the take up motor for dvd player the band maybe streached have you got it serviced latley as this maybe the cause of problem this is due to heat from dvd player and vcr comby drives please have it looked at by an expert in this field as my sony dvd player and vcr does the same as you've described

SOURCE: Samsung 3650 dvd/vcr player loading problem

Sorry, no suggestion other than don't buy Samsung. That's my conclusion after owning the same model. It worked fine for a while, but now won't load any DVD... usually. Sometimes it will play one, but more often it won't. Mine tries to load ("Loading") for a long time, I hear the DVD spinning, then ultimately the screen displays "This disc cannot be played" or something to that effect.

SOURCE: LG DVD recorder/VCR Combo problems

you need to replace the dvd loader(the whole setup, the draw/tray,laser sled assy ,etc) statewide sell
parts for lg.unless you know an authorised lg repair agent.too bad you dont know me, lol.
(ps,its not in the manual,cuz there is nothing you can really do about it without serviceing the unit)

SOURCE: lg dvd drawer opens by itself and wont stay closed

I tried the solution documented at
http://www.ifndef.altervista.org/index_eng.html
3:rd Loader repairing

SOURCE: dvd tray will not stay closed. opens and shuts randomly

i had exactly the same problem on a LG-RH278H resp. a Medion MD 81733. I solved it by opening the micoswitches, cleaning the contacts and streching the springs inside the switches a little. The Problem was, that one of the microswitches stayed conductive even when it was off/open.