I have the Lite-On SHOW-1673S and it was a very fast drive. Then I had to reinstall the operating system on my computer and I did the service pack 2 update. I have Windows XP Pro. I did a search in the forums and I have read about the DMA settings. For some reason it is in PIO mode and I can't change it. I think this is probably why it is slow. It is slow both reading and writing discs. I have tried to write to and from different hard drives and it doesn't make a difference. Thanks in advance.
Reinstall SOHW-1673S alone. Use different connectors or channels or controllers or cards.
Welcome to cdfreaks ddawson24
Also try deleting the IDE channel driver using Device Manager and then rebooting. This is usually the secondary IDE channel.
I've move this thread to the Liteon Forum
after a reinstall of xp you need to reinstall all 3rd party drivers. in your case this should first be motherboard chipset drivers.