Dvd not taking any disks

does it read other disks?
try a few difference DvD's.
if other disks work, the disk you want to read is broken.
if other disks do not work, your dvd player is broken and you should get a new one or contact JVC if it is still under warranty.

CLEAN OR REPLACE OPTICAL BLOCK

Have you tried a DVD+/-RW ?

The noises that you are hearing will be the spindle motor trying to spin the DVD as the lifting presentation tray for the read/write head has not located, if the media is not spinning this will never be able to read the lead in on any DVD as it has not presented the disc in the correct place.

If is is out of guarantee then I suggest that you check to see if the DVD is spinning by removing the top cover with the power OFF then eject the tray and try to load the media a small touch of the DVD in the clockwise motion should cause the media to start spinning, this is for diagnosis only if this is the case then the spindle motor will need changing

you are probably running xp go to help and type in find new hardware sounds like somehow your drive got deleted in the hardware and device manager this will work with vista too unless the drive went bad naturally

Some dvd have a multiple laser function for dvd and use a single laser for cd. common fault on not reading dvd is dirt on laser or fault on multiple laser that cannot read dvd. If cleaning doesnt help only repair tech can fix. Just check that the dvd is working in another dvd player to ensure it is not disk

Your DVD drive is overheating and untill you replace it your likely to keep getting the same problem. However there are a few methods of fixing it on your own.

1. First look for better drivers online - this shoud increase the preformance dramatically.
2. Second there is a chance that your lense is dusty or scrached - go to your nearest supermarket and look for a dvd that cleans dvd players. (these disks have tiny fine brushes that clean dvd player lenses. this may fix your problem all together.
3. If you cannot do ether of these try to blow the dust out of the lense.
   

The disc cleaners that can be purchased are little more than brushes that can clean dust only. If you can gain access to the lens of each unit, try cleaning the lens carefully using a cotton swab and alcohol. That should resolve some of the problems. If not, then for some reason you have multiple failed optics assemblies.

Dan

It can be several reasons
1. Disk is upside down
2. Lens is durty. You will need to use CD/DVD cleaning disk for that
3. Disk is having diffrent region code or recorded in diffrent formate (for instance player playback disk recorded in NTSC, and you trying to playback disk in PAL formate)
4.Disk is recorded at higher speed (for instanse player markered X16, but disk is recorded at X24)
Good Luck

Basic DVD, CDrom Troubleshooting
wrong disk ,disk error,
First Clean the lens:
http://www.ehow.com/how_2036275_clean-lens-dvd.html

wont open, wont close, makes clicking/grinding noises etc.
http://www.llamma.com/xbox/Repairs/thompson_dvd_tray.htm

The laser has become damaged/worn-out. There is no fix for it as replacement parts are not made for it.