permission issue in subtitle MXF

[GoogleCodeExporter]

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Product Version: 0.30.00
GUI or CLI: GUI
Operating system: OS X 10.10.2

What steps will reproduce the problem?
1. Create a SMPTE subtitle MXF file using the GUI
2. Try to extract the resulting MXF using asdcp-test -x


What is the expected output?
The original xml file + the font


What is actual output?
asdcp-test can not open the font file because of a permission problem: 

Error opening file /157c66c7-793c-4b0d-8327-b72b6160481a: Permission denied
Program stopped on error.
File open failure.

The original font file (157c66c7-793c-4b0d-8327-b72b6160481a) has rwxrwxrwx 
permission. I suspect this behavior is the reason why some servers (eg Dolby) 
have issues playing back DCPs with SMPTE subs made in openDCP: they can not 
open the font file.

Original issue reported on code.google.com by [email protected] on 6 Mar 2015 at 11:00

[satantango]

I often get this error on picture or sound tracks on cinema tested and working dcps. Moving the files to another drive seems to help.