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On Xubuntu (Oneiric), thinking that I had duplicate songs in my library, I clicked the option to remove a file from my library (I think).  The song was on a network (CIFS/SAMBA) share that was mounted via Gigolo.  Later I discovered that the song, a flac file, was not a dupe, it was completely missing from the library in gmusicb.   Checking out the mountpoint, I found that the song was not there but apparently the OS had renamed the file "0XKYB5~X", so that gmusicb no longer recognized it.   I tried to rename it, but got permission errors - good thing though, b/c  I went to the  'server" machine, and behold, the file was there in its original form and name.  So can I assume that gmusicb told Xubu to rename the file locally?  Is there any way to undo this marking/renaming??