Removable flash drive isRemovable returns false

Hi,

I have an application in which users can elect to copy files to a removable drive.  Up to now we simply looped through the storageVolumes and checked the isWritable and isRemovable properties to list the drive(s) available.  But on MAC OS, I've noticed that a flash drive is returning false for isRemoveable.  I have an identical flash drive that returns true. I checked and the drive that returns false for isRemoveable does fire the StorageVolumeChangeEvent.STORAGE_VOLUME_MOUNT event.

This is making it very difficult to reliably present users with a list of removeable drives to which their files may be copied.  I'm out of ideas on how to get around this and would appreciate any ideas, particularly from ADOBE staff as this seems like a genuine bug.

Best regards,

Chris McLaughlin