Ok.. i think 128 bit encryption means that the crypto softwares encrypts the data every 128 bit.. compared to 64 bit.. where it encrypts every 64 bit of da data..
hehe ok i just found out i was wrong in that bit..
I juz had a short educational talk wid da ppl in IRC...
basic over view is that the file is encrypted with 128 bit has longer KEYS than 64 bit.. but its a bit more complex dan dat.. but dats juz a rough over view..