Comment 8 for bug 407030

Since I have OSX 10.7, I had the same problem.
I never hat that Problem on OSX 10.6.x.

First I also thought, that it had to do with the number of files:

The whole CD did not work, but 3 files. Then I test 4, 5 and 6 files,
and it sometimes worked, sometimes not.

Maybe it has to do with that the program must be in foreground, and not in the background?

Model Name: Mac Pro
System Version: Mac OS X 10.7 (11A511)
  Model Identifier: MacPro5,1
  Processor Name: Quad-Core Intel Xeon
  Processor Speed: 2,4 GHz
  Number of Processors: 2
  Total Number of Cores: 8
  L2 Cache (per Core): 256 KB
  L3 Cache (per Processor): 12 MB
  Memory: 8 GB