DVD rom not responding to DVDs since XP upgrade

[Guest]

Hi,
Ever since we upgraded from 98 to XP, the dvd drive does not respond to
dvds. I have tried this suggestion:

" If you installed the Windows XP upgrade over Windows 95, 98, or Me, and
your DVD-ROM was working fine before the upgrade, it may be that the drive is
being treated as DMA (direct memory access).

Try changing the transfer mode settings to PIO (programmed input/output)."

Does anyone have any ideas?

Thanks!

 

[Alex Nichol]

Ever since we upgraded from 98 to XP, the dvd drive does not respond to
dvds. I have tried this suggestion:

" If you installed the Windows XP upgrade over Windows 95, 98, or Me, and
your DVD-ROM was working fine before the upgrade, it may be that the drive is
being treated as DMA (direct memory access).

Try changing the transfer mode settings to PIO (programmed input/output)."

I very much doubt that advice. I would expect a DVD to be on 'DMA if
available' and possibly using Multi-Word DMA rather than Ultra DMA

But you do it in Control Panel - System - Hardware - Device Manager
Look in IDE ATA/ATAPI disk controllers, either Primary or secondary
channel, depending on where it is connected. Double click, look on
Advanced Settings, for the master (above) or slave as appropriate (note
the HD will be Primary Master). You can change the Type to PIO; or if
it is on Use DMA but below says it is only on PIO (which I would think
the more likely problem) you have had too many errors on it, and the
system has fallen back on PIO and stuck. If so, go to the Master
controller, just above Primary, highlight, Action - Remove and OK. Shut
the machine down. Investigate possible reasons; first you should be
using the high grade cable for UDMA, with 80 fine wires on the 40 pin
connectors. And one end should be on the motherboard, the other on the
Master device (or certainly on *a* device - having an end dangling is
not good. Also if a CD or DVD shares with a hard disk, the hard disk
must be the Master. After checking these points power up again for PnP
to have another go