WRITER CAN NOT WRITE DVD. WHEN WRITING IT SAYS DRIVE NOT FOUND.

First check that your drive is indeed a DVD writer and not a 'hybrid' i.e. CD writer and DVD reader. If it is, go on the manufacturer's site and see if they have Win 8 compatible drivers - Win 8 is a fairly new OS so they may not have had time to get a new one out.

No PC stated
why post lacking what operating system is there,? too.
no burn software stated. (app)
try imgburn, free, it works like gang busters.
what cant it be?, well lots !
1: bad dvd drive.
2: bad disks, DVD-r works best. or CD-R
3: bad burn program.
4: infected OS, gee if XP its sure is, all are now. its a virus magnet.
5: bad dvd drivers. (if XP?, need sP3 first and then needs the HP drivers, then needs the registry filters cleaned. (all pain here, take great skills to make XP work, and lots of text in a box, endless.

(to solve any problem like this,
replace it is most easy first or most cheaper.
your call that.

yet on more post lacking and OS. (par here)

It is likely that the laser diode for CD reading and writing has burned out. DVDs use a different laser diode. If this functionality is important to you, replacement is the only option.

try to reinstall the driver and update its firmware if available and test other writing software and other brand of Cd or Dvd. if same thing happens, it appears to be with the drive and you'll need to get a replacment for it

just insert a blank dvd in writer and send the file to dvd drive showing in ur computer by write click on the file and choose send to say dvd rw drive f.
when all the files are transferes to your dvd drive. click on my comuter and open this dvd drive there you see a option in the left panel " write these files in to disc". click that option wait for some minutes until a popup comes saying writing completed . now your file has been successfully written in the disc.

you can check the capability of your drive with nero so you know which disk u can write to.

ree install your burning program cheers

Try downloading a program called " RadarSync" it works like driver detective, might possibly help you out.

www.radarsync.com/

as with all writers eventually they fault at the lens and it gets out of line and cannot read discs, you can try the usual thing of checking LG for any firmware updates, but first:- Go to my computer>right click>hardware tab>device manager, then down list to cd/dvd drives and click '+' sign and highlight your writer, right click on it and select uninstall. Restart PC and it will be automatically re installed, try again and if no change you will need to replace the drive as they are cheaper nowadays.

If you have posted the correct model of writer, then it only supports the writing of DVD+R and DVD+RW discs, but CD-R and CD-RW disc writing are supported, and it should play all forms of DVD, so it won't burn DVD-R and RW discs, but if it wont play all types then try a cd/dvd cleaner, but to be honest when writers start playing up the lens is normally faulting and a replacement drive will be required.