I've been wondering about codex and how I get some, too, but my downloaded movies from LW are all playing fine, but play best on my Windows Media Player. Come to think of it, my RealPlayer shows that sound is working, but I still can't hear it and can't see it at all. Could it be a resource issue? I have WinXP Home running with 256 ram and lots of free harddrive space. I've also gotten the invalid file message and the file played just fine, so go figure....

But if anyone is listening, I have some questions, too, about just what all the letters mean, like wmv, avi, srt, and mpg mean. When I talked with a friend about my avi downloads, (that's what I've been selecting) he said that he was amazed I got a picture, said the avi is the sound portion of movies or some such thing.
I've tried to look up the definitions of the movie extensions, but come up blank everytime in any help files I go to.
Another question is the time that some folks put in the info of their files to share. I always pick the biggest files in hopes of getting the full movie and it sure looks like the full movie when watched. But the info says for a 700 meg file that it's 59 minutes long. That's not long enough for a complete movies. So what am I getting? An edited version? Does the sharer cut them down, or do the programs do it for you? And how do they get squeezed from a 2 gig movie to what we can download? I have DVDShrink, but I don't know what it does really. And I haven't figured out how to use it either. The movies I shrink seem to come out as long as they were to begin with, unless they were longer than 2 gigs to begin with.
Any help on this would be wonderful. Maybe if I understood what was happening better, I could get my copies on the computer to share. So far, I think 2 gigs is too big to share. I wonder what extension they have once DVDShrink has shrunk them? Oh, help! Anyone! Thanks.