:a me plextor has a red cros by it in device manager and there is a drive there that was not befor AXV CD/DVD-rom scsi cdrom devise with a red cros by it ??
no mater what i do when i boot the bios sees the plextor and the liteon i have but when it goes to windows nothing only the liteon shows as working drive
can you help btw the liteon is a 1656 it driveing me mad 
The AXV is (IIRC) a virtual drive made by Alcohol 120% - I usually disable it because it can mess stuff up.
Might be worth checking the jumpers on the drive - One of the RMA’s I got was set to Master and I didn’t check.
Now, my Pioneer 106S was on Cable Select and on the Slave part of the cable, and my compy managed to boot, but it got really confused later…!
it was aspi i think because when i got rid and put it back on it worked fine 
So, problem solved?
it looks like it and same with me liteon drive but me sony one still does not right to cdr`s or read them at all but they have sent me a new drive and will be here today i hope 
as ever thanks for eny info you all give
Sc00terx