I've been looking for the same thing, and the BTRIEVE module in CPAN only supports "SAVE" files, and specifically does not support the "other 12 documented formats"... apparently including ".BTR" files (which is what I need a parser for). My fix is to install Pervasive on my computer and extract the database into a CSV and have Perl parse and inject that into our target db. That, or see if there's a Pervasive JDBC driver and do it in Java. Or maybe this is an excuse to learn Python. Or...