I wrote DBD::WMI for that case. It only works under Windows, because WMI (or rather, WBEM) isn't as widespread elsewhere. I don't have the WMI query handy at the moment, but the links I have in DBD::WMI should point you towards the correct resources.

In reply to Re: Detect Plugged USB Flash Drive / CD in CDROM Drive by Corion
in thread Detect Plugged USB Flash Drive / CD in CDROM Drive by renegadex

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