On Thu, 31 May 2012 05:29:06 -0700 (PDT), mike
wrote:
I'm wondering if anyone out there would have a remedy to apply to my
LG
(GH22NP20) dvd burner. It's been working fine since I got it about 3
years ago,
Until yesterday, when I added a Lite-on DH-20A4P.
Two issues, jumpers and cables. My guess(tm) is that you have both
drives jumpered identically for master or slave. That won't work. One
has to be master, and the other slave (or both on drive select).
I do not like to run two drives on the same IDE controller or same
ribbon cable. It really slows down copying DVD's, but is adequate for
any other purpose. With both drives on one cable, one drive acts as a
master, while the other acts as a slave. There are combinations of
drive manufacturers that just don't seem to get along. You may have
one of those. I've had good luck with LG burners in general. Not so
good luck with Lite-On. Try putting the drive that does the most
burning and gets the most use by itself on the secondary IDE
controller, and the other drive as a slave to the hard disk drive on
the primary.
Be VERY careful how you set the jumpers. One mistake in jumpering and
you'll scramble your hard disk drive. For the drive on the secondary
IDE, just set it for either Master or Drive Select. For the drive
sharing the cable with the hard disk, set the hard disk for master,
and the added drive to secondary. If that doesn't work, go shopping
for a pair of identical drives, which should cooperate.
If you don't want to risk scrambling the hard disk, both CD/DVD drives
on the secondary cable. Set the jumpers on both drives to drive
select, and let them argue among themselves as to who gets to play
master and slave.
There's some question as to whether to use 40 or 80 wire ribbon cable.
Some of the faster 16x and 24x DVD drives are fast enough that an 80
wire ribbon cable is required to get full speed. 16x is 22Mbits/sec.
40 wire yields 33Mbits/sec, while 80 wire is needed for UDMA 4 at
66Mbits/sec. 80 wire isn't really needed, but it does help and is
generally recommended.
Also, check for firmware updates.
http://www.firmwarehq.com/LG/GH22NP20/files.html (Don't install EW
if in the US).
http://www.firmwarehq.com/Lite-On/DH-20A4P/files.html
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558