As the author and maintainer of this application (pacpl), I can assure you that Ogg::Vorbis::Header::PurePerl is by no means a "drop-in replacement". All functionality for modifying ogg tags is currently (and likely will always be) unimplemented. The ::PurePerl version is good for nothing more than 'reading' ogg tags. After spending a day or so looking for alternatives, Ogg::Vorbis::Header is still the best option I have seen thus far for 'writing' ogg tags/comments.
I am of course open to suggestions, so if anyone has another module that will do the same, I'm all ears.
