048f7f029d50f2bfb4fb3de4aa1cbb37  devx_precise_5.7.sfs___devx_precise_5.7.1.sfs.delta
e691ddf28a07c3d64bba26a2b7479198  precise-5.7-retro.iso___precise-5.7.1-retro.iso.delta
e2697d4e3e178ab2bb1dab0aeae1b44f  precise-5.7.iso___precise-5.7.1.iso.delta