Where I get new RH256 firmware fo dvd recorder LG ?

Check with manufacturer web site for firmware upgrades.
But only do this if absolutely necessary since too many things can go wrong and render your gear useless..

you might have to physically unplug the leads for this cd/dvd then plug them back this should activate the found new hardware wizard or
you might have to uninstall then restart your computer then reinstall your DVD/CD then reinstall the driver for this device
if your computer came with a motherboard disk the drivers could be on it
click start control panel administrive tools computer management device manager scroll down cd dvdrom drives if you see a yellow question or exclamation mark?! or a red x right click you will need to update the driver or
select properties general troubleshoot, select driver click to reinstall drivers click update driver
hope this helps

http://download.cnet.com/lg-gce-8520b-firmware/3000-2122_4-10203021.html
The new firmware offers enhanced recording speed of some CD-R media on your LG GCE-8520B CD-R/CD-RW

Follow this link and you will find your manual:

http://www.chung-sim.com/lg.rh256.html

Review: LG GSA-H42N
Reviewed by: MegaDETH
Provided by: LG - USA
Firmware: RL00 and RL02
Manufactured: December 2006

The LG GSA-H42N internal IDE drive. LG's newest DVD burner incorporates DVD-RAM recording, creating a true DVD Multi drive. Single layer 4.7GB DVD burning is supported at 18X max. Double Layer and Dual Layer Recording speed is 10X max. DVD Rewriteable speeds are 8X max for DVD+RW and 6X max for DVD-RW respectively. DVD-RAM recording is supported at 12X max. Very fast 48X max CD-R burning and 32X max CD-RW.

Hope this answers your question.
Have a great day!

Hi there, original firmware supports only dvd up to 4x. If you will try speed more than 4, recorder refuse them.
Try to insert 4 x DVD, note even 4 speed dvd will not work all - depends on brand.
There is new firmware available, you have to call customer service before upgrade, they will tell you everything about...
With new firmware you will be able to record all speed and type dvd...

my relatively new, sat idle for two years, LG RHT398H DVD RECORDER has a strange fault the dvd keeps opening and closing at random if a disc is inserted and it wont obey open close commands, or read discs it, the dvd is totally rouge. The rest of the unit is fine. i think it will need re-install of firmware or maybe cleaning any ideas?

Follow this link and you will find the manual

http://www.chung-sim.com/lg.rh256.html

I've got the new firmware. Email me @ [email protected]

It'a 7MB file, just copy it and play & you should be ok.

Well LG makes this unless you can find a firmware up then you must order some DvD-RW with CPRM this allows you to copy your shows once then recording over them.I got this from LG.It's a common firmware problem that started when digital signals got sent with copy right protections.

leave your dvd player off for about 1 week.if it still do the same thing then you will have to replace it.good luck