Hello Phil,

thanks a lot for your fast reply. Both of your solutions will work in most cases but for my context it doesn't really help:

I've written a Ruby library which parses the whole output of exiftool for a specific file and encapsulates it into a Ruby object. (You can find it on Rubyforge or Gitorious.org.)

The main point is that all new tags of a new exiftool version are supported immediately without adapting the Ruby code. :-)

Therefore I don't want to parse some tags (Keywords, SupplementalCategories, ...) in a special way and using the -b option isn't practicable.

On the other side I don't want to write an additional piece of code which a user of my library has to install. At the moment he has only to install the exiftool commandline-application and my Ruby lib and it works, even on Windows systems.

Ok, if you don't want to escape the comma how about a commandline option for getting multiple lines of list values? For example

Regards,
Jan