This is still mostly up to date I think, but it's not specific to your question and won't tell you how to encode WMV:
http://forums.macnn.com/showthread.php?p=2414670
No, mp4 is a container too. Actually, "mp4" is just a container and "mpeg-4" is just a codec (actually "mpeg-4" also other things you don't have to worry about). It's confusing. The only thing I know of that's just a raw bitstream with no container is .xvid, and you never see that in the wild. It's possible .m1v/.m2v/.mpv are raw bitstreams; I give that a 50% chance. You never see them either.
I don't know how iMovie handles drag and drop, but in QTPlayer that would just create a reference movie (a small file that's dependent on the original, wherever iMovie stores that). How big was the file you dragged to his laptop? DV is always fixed at the same bitrate, about 13 GB per hour; that's the first clue you have to find.
http://forums.macnn.com/showthread.php?p=2414670
Quote:
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Originally Posted by jasonsRX7
So since you could save a MPEG4 encoded file within a .mov container, or within an .avi container, does that mean that a file saved as .mp4 has no container?
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No, mp4 is a container too. Actually, "mp4" is just a container and "mpeg-4" is just a codec (actually "mpeg-4" also other things you don't have to worry about). It's confusing. The only thing I know of that's just a raw bitstream with no container is .xvid, and you never see that in the wild. It's possible .m1v/.m2v/.mpv are raw bitstreams; I give that a 50% chance. You never see them either.
Quote:
| I just dragged it out of iMovie as a .dv clip and over to his laptop. |
I don't know how iMovie handles drag and drop, but in QTPlayer that would just create a reference movie (a small file that's dependent on the original, wherever iMovie stores that). How big was the file you dragged to his laptop? DV is always fixed at the same bitrate, about 13 GB per hour; that's the first clue you have to find.