Have you checked the settings for the hard drive controllers in the
device manager?  It sounds like a problem with the BUS mastering IDE
drivers.  You may need a more recent version than you have on your computer,
or you may have the wrong one installed.  Even if there is no sign of a
conflict, the driver may be incorrect or too old for your hardware.  The
wrong or old version of BUS mastering software would most likely be the
reason the CD-ROM is not being detected by Windows 95, which is why you are
being forced to use "DOS" drivers to make it work in Windows

    I don't decide a device is "bad", until I know it shows the same problem
in another system.

    - Ken


----- Original Message -----
From: Altaf Hussein <[log in to unmask]>
> Hi all,
>
> I have a MMX 233 machine running win 95 with a 24x CD-ROM drive (drive
name
> 24X MAX).
>
    <snip>
>
> The problem is that I cannot copy any file from the CD-ROM to the hard
disk
> as the message 'invalid file handle' appears.
>
> The driver is loading correctly into the OS. Appropriate lines are in the
> config.sys and autoexec.bat and it detects the drive at startup and the
> message that a CD-ROM device was found also appears. But the Device
Manager
> does not show the CD-ROM drive. I have tried to Add New Hardware but it
> does not detect the CD-ROM. Even booting from a startup disk will not let
> me copy files from the CD-ROM to the HD even though I can access the
> directories and files.
>
    <snip>
>
> Is my CD-ROM bad? It there anything I can do to rectify this problem
>
    <snip>



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