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hey folks, i’ve forgotten to post this cool link … here are some facts about it [1]: How is JPEGmini different from JPEG? JPEGmini files are optimized JPEG files, whose parameters have been tuned to significantly reduce the file size without affecting perceptual quality. How does JPEGmini compare with JPEG2000, JPEG-XR, WebP, or other image formats? JPEGmini uses the standard baseline JPEG format, which is by far the established market leader in the image compression space....

hey folks, here some useful tips, how to easily rename jpg file according to their exif information (found at http://giantdorks.org/alain/rename-jpeg-files-with-exif-date-using-exiv2): exiv2 -r ‘%Y-%m-%d_%H%M%S_:basename:’ rename myfile.jpg or using this script for entire directories: find . -iname “*.JPG” | while read f; do exiv2 -r ‘%Y-%m-%d_%H-%M-%S_:basename:’ rename “$f” done thanks to Alain Kelder! ;)