For
crowie and anyone else who is interested.
Specs: I'm using iMovieHD and running OSX.
I have a vidlet that I wanted to convert to DiVX. Not having done this before, I started with the mac vidding guide from amv.org. It has pictures -- screenshots of the programs used -- which I find easier to understand than technobabble. I'm not actually very computer literate when it comes to codecs and conversions.
"Making AMV's with iMovie guide" by Dennis 'Kirin' Ramos.
Since the vid is short, I experimented with two methods. Here are my results:
Full size project when exported from iMovie: 225.4 MB DV file (for one minute) (that's not a typo).
Export to DiVX using D-Volution.Simple. Only one program to DL. Program is easy to use and conversion is very fast.
Result: 9.6 MB DiVX .AVI file, better quality for the size than I got with iMovie exporting to CD-ROM format.
Export to XViD using ffmpegXNote: there is a caution in the tutorial that you will get errors if you use the DV file, but I used the DV file and it worked for me. Both iMovie and ffmpegX have been updated since the tutorial was posted last August, so I suspect that the bug has been fixed.
Using ffmpegX was a bit more complicated than D-Volution, but the quality was much better (it's almost as good as the original DV file) and the file was only slightly bigger.
DLing and installing the various components wasn't that difficult. You have to go the websites and DL two things. Remember to unzip the zip file (which will give you two of the three components). Click locate, and find the files on your hard drive. Then enter your OSX password and click install. (Follow the links that come with the version of ffmpegX that you DL, not the exact ones in the tutorial).
Kirin's tutorial is interactive -- if you click on the Video, Audio, Filters, Options, and Tools tabs, you will see exactly which options he checked. The screenshots match well to the text descriptions, but sometimes there are additional suggestions if you are using DVD source, such as to check the Deinterlace and Denoise tickyboxes.
Also, for the QMin and QMax, Kirin says to leave those blank, but the screenshot has numbers there.
The conversion process is much slower than with D-Volution. It took about 20 minutes to convert 60 seconds the first time. And then I realized I'd made a mistake and had to redo it. So I would suggest checking the 5 second preview -- that will quickly give you the last 5 seconds of your vid and you can tell if, for example, you checked the wrong aspect ratio. Then uncheck it and run it againto get the full file.
Final result: 10.4 MB XViD .avi file, more buttons to check, slower conversion, excellent quality.
All files are 720x480.
I don't really understand what I did, and I don't have an opinion about the other options available, but it worked! And the quality is impressive for that file size.