Hi
I had make this test (try) : - create 12 txt's files of 100 MB (exactly 102 400 000 bytes) - create the file "tst.zip" who contains this 12 files (but the file result is only 1 095 965 bytes size...) - delete the 12 txt's files - try your code And... it's OK for me. But : the compressed file is only 1 MB of size ; I had 1 GB of RAM ; I use windows-XP Sorry, because : 1) my english is bad 2) I had no found your problem Michel Claveau -- http://mail.python.org/mailman/listinfo/python-list