8/8/11 12:50:03 AM Mail Error loading /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: dlopen(/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio, 262): no suitable image found. Did find:
/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: no matching architecture in universal wrapper
You'll see it for VLC, Mail, loginwindow, SustemUIServer, UserEventAgent and a bunch of other stuff.
You don't need it. Or at the very least, it's highly unlikely you'll need it.
So what to do? Since Apple has never really clarified what's going on here and it's a LONG STANDING bug/error/incompatibility and older versions can't even load on Intel machines (there is a universal version from 2007 of the plugin) I went to where it was, zipped it, trashed the original and left the zip file sitting there.
It's located in /Library/Audio/Plug-Ins/HAL
What is this thing anyway, you ask?
I think it's a USB driver for 1:1 audio connections that apps like Reason, Audacity, Cubase and Logic use; or at least used to.
If you want to poke around the file you can take a look at it in the Terminal: copy and paste in:
ls -IR /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin
and you'll see some helpful-ish information:
drwxrwxr-x 6 root admin 204 Apr 20 2007 Contents
-rw-rw-r-- 1 root admin 1258 Mar 30 2007 Info.plist
drwxrwxr-x 3 root admin 102 Apr 20 2007 MacOS
-rw-rw-r-- 1 root admin 9 Mar 30 2007 PkgInfo
-rw-rw-r-- 1 root admin 514 Apr 20 2007 version.plist
-rwxrwxr-x 1 root admin 1254748 Mar 30 2007 DVCPROHDAudio
So it's not a permission's issue.
Then you can try: (again, copy and paste into the Terminal)
and you'll see some slightly more helpful things like:
/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: Mach-O universal binary with 2 architectures
/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio (for architecture ppc): Mach-O bundle ppc
/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio (for architecture i386): Mach-O bundle i386
So, hey, at least the version you may or may not have is Universal.
And you can even right-click on it and Show Package Contents and dig around. You can open the DVCPROHDAudio file in Contents/MacOS with something like Hex Fiend and confirm that it's an audio driver for some obscure and some fairly outdated stuff.
Bottom line is you'll know if you need it. If you don't know, then you don't need it and likely never will. For my system it seems okay to zip the original package in the HAL folder and trash the original plug-in. This way it won't load (because it's not a .plugin file) and should the occasion arise when you do need it, just double click it to unzip it right where it needs to be.