Debian packages of pvrg-jpeg --------------------------- md5sum sf.net and: http://www.panix.com/~eli/jpeg/download.html match: d67276117e3b8c91340440c25d4ae1fe The original main executable (no libraries) used to be called simply 'jpeg'. I changed it to 'pvrg-jpeg' to clearly indicate that the output it not guarantee to be pure jpeg (93 specs), eg. in lossless 16bits. The bug has been reported here: http://sourceforge.net/apps/mediawiki/jpeg/index.php?title=Pvrg#Bugs or even again Java JAI: http://jai-imageio-core.dev.java.net/issues/show_bug.cgi?id=179 The most well known images with this PVRG bug are coming from this mammography database: http://marathon.csee.usf.edu/Mammography/Database.html - Mathieu Malaterre. You can find the original documentation that needed to be striped from the Debian source archive since it came without any source in upstream SVN here: http://sourceforge.net/p/jpeg/svn/HEAD/tree/pvrg/doc.ps