Held optical files

If the optical file system is unable to update the optical disk during a close function, the operation fails and the file is marked as held.

The optical file system might still consider the file to be open. If it considers the file open, the optical file system allows any application that already has the file open to continue operating. In any case, no new application can open a file while it remains held. If the system can correct the condition that caused the failure, and the file is still open, the application may attempt to close the file again. If the close function succeeds, the system no longer holds the file.
Notes:
  1. If an HFS application specified an open type of normal, it cannot access the file through the HFS API any longer. See the online help information regarding the open types that concern the Open Stream File command.
  2. The system does not create held files when files fail to close on Universal Disk Format (UDF) media.
Parent topic: How optical files are used
Related reference:
Application programming interfaces (APIs)