As I previously reported
almost a year ago myself and remains an issue still in 5.601, this is an entirely frustrating bug and maddening, not only because it prevents me from switching to Winamp as my default media player, but moreso because of the apparent reluctance of the Winamp developers to take an active role in further troubleshooting and resolving this issue.
DrO, are you somehow UNABLE to reproduce this bug if you install Virtual Clone Drive or similar on a test machine w/a vanilla Winamp install? No matter what I do w/a vanilla Winamp install + Virtual Clone Drive, I can't NOT lock up my machine unless/until I rename/remove ml_disc.dll.
Honestly, at this point the impetus should be solely on the Winamp developers to troubleshoot and resolve this issue. This is a ridiculously easy bug to reproduce and there's simply no excuse for not adequately addressing it after Truth Unknown reported the temporary workaround
a year and a half ago.
In case this is somehow unclear, I am testing with a fresh, vanilla installation of Winamp 5.601 w/no additional plugins, default skin and a running copy of Virtual Clone Drive and every - single - time - I mouseover the "Send To" dialog box in Winamp my machine locks up completely requiring a reboot to remedy the situation.