i try the noclone and feel well.but before i buy it,i have a problem or suggestion.now noclone can find same files in local hd or mobile hd easily.it give us many convinence.but with file's icreasing(maybe vast), you need vcd-dvd solution.so in future your documents are on file in vcd-dvd mainly.you need to compare files between your local hd and many vcd-dvd,i think it must spend too much more time.
facing the above, i have a small advice. noclone might make a quick shot or list of files about every vcd-dvd disc and stored in local hd.so you don't need real vcd-dvd discs when u find duplicate between local hd and many vcd-dvd. it give us ease.and lists or quick shot don't occupy too much space in hd(10-100k) i am looking forward to new version consenting the advice.
good luck
angel