I had this same kind of problem using a library on an external drive. Maybe it was ejected wrong, I can't say what happened. Things have been working fine until now.
Here's what happens:
When I try and open a file through the YACLibrary, I get the error popup
Format not supported and the file asking to
Press 'O' to open comic. This actually opens the file and we're good to go. When I try and open this file from the YAC Library again it works.
I can open files normally from the YAC Library my local drive. But I can't load up files to my iPad from the external drive. (I had issues locally but that appeared to be illegal characters in the filename.)
So I unmounted and mounted the drive; ejected the drive, turned it off, and unconnected it before remounting; I tried to figure out how to add the 'nolock' option when mounting (couldn't quite figure that one out for Mac OS X); I updated to the latest dev version (the xml scanner works great, BTW).
To troubleshoot, I copied a local directory that had files that were working to the external drive. The copied directory failed the same way. When I compared the two directories, the local permission was for "staff" and the external directory had permissions for "wheel" (superuser group). Trying
, there was a @ symbol at the end of some of the permissions. These turned out to be the files I initially failed to open, but was able to open fine after "manually" opening them after the error.
returned an empty
If I figure it out, I'll post. Otherwise has this happened to anyone else?