Ok people bear with me, this situation is a little farquaded.
Will someone please help me solve a minor dispute? Both I and a friend of mine backup copius amounts of dvd movies. I use the method that is tried and true to me, movie only, one audio track, compress with DVD fab to fit on a DVD5, and burn with IMGburn. Short of double layer disks or maybe running every movie through dvd rebuilder I feel this yields the highest quality picture.
My friend used to subscribe to the same or a similar method, but now swears by a new one. He "obtains" 700MB avi rips, sometimes DivX, and either burns them as they are, or uses a converter to put them back to Mpeg, and burn to DVD. He claims that when the DVD is compressed to .avi, no information is lost in the process, or at least not irretrievably lost. He stipulates that ripping to avi, then converting back to Mpeg is "full circle" sort of like using winzip back in the day to send a file then unzip to its original size.
I don't know enough about this to argue with any real conviction, but in my mind, it seems like ripping to avi is like ripping WAV to MP3, and much data that is essentially undetectable is discarded. I assume that framerate/resolution/I don't know what is discarded when compressing video, and to make a very long story slightly less long, I argue that avi converted back to Mpeg cannot possible be as good quality as a straight dvd rip, not even close enough so that I would consider the time saved as being worth it.
Can anyone enlighten me on what goes on in the various processes I've described about and who is right in this situation?
I of course am just fine with my own results in backing up, but he badgers me to no end about how much easier and faster his way is and I'm a dumbass for still doing it my way.