From: Meino Christian Cramer Date: 2006-07-09T02:26:42+09:00 Subject: Algorithm searched ... Hi, I was thinking of a "problem" I have: On my harddisc there are several recording of broadcasts made with my DVB-T receiver. Let it be an amount of 20 or so. Each recording is about 1.2GB - 3.5GB in size. An DVD takes 4.7GB of data. I am looking for a way to choose those combinations of recordings, that the space on the DVDs are used best -- or in other words: that as less DVDs are needed to store all recordings. It may be that this is equivalent to the "backpacker's problem" -- for which -- as far as I know -- is no algorithm available. So I am should better say: I am looking for a way to find those combinations a fast way of attempts as for an exact algorithm, which is proofen to solve the problem...but...I have not studied computer science...so... How can I do such in Ruby best ? Keep rubying! mcc duck.quak