I have an external I/O Magic >flashed> to BenQ 47L9. I got the "Parameter value Invalid" error on every disc I tried to run the CD/DVD quality scan on when the drive is hooked up to my Toshiba Media Center laptop. This problem does not happen when the drive is hooked up to other machines(2 that I have tried). It does get the error on my daugters HP m200y Media center edition! (but not always, need to retest there)
I tried all different firmwares to fix the problem on my laptop. The disks burned while hooked up to the laptop play fine and scan fine in my internal Benq B7P9 on my desktop machine. Lastnight I installed Service Pack 2 on my laptop, and what ever was causing the problem is gone now. I have scanned repeatedly on the External drive while hooked to the laptop and all the scans came out fine. No more errors.
I find it strange that both machines that had the scanning problem were Media Center Editions. I'll need to go back and look at my daughters HP to see if I can get it to work there.
Anyone else experiencing this problem?