Quote:
Originally Posted by Bibio
i think i'm right on this but its been a loooooong time since i have done any video editing so...
if you are converting to dvd then the disc needs to finalise so will take all space to do so, if you dont finalise then it might not be readable in drives. the data will not be or it might be larger depending on how compressed the mp4 was. remember that mp4, iso and mkv are all 'containers' just like rar and zip. with exception of iso the other formats can be compressed so when you decompress them e.g. burning to dvd the file size is actually bigger. usually not the size your looking at though.
the editing software will also need ram to decompress and will show as a bigger file. your going from a compressed file to a 'raw' file. 4gig for 1hr 15min sounds about right for dvd. most of your newer dvd's are 'DL' and as such can store longer movies.
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You're on the money I think, as I read something along these lines, I think the 3gb is in part of the container I can't see.
Not got to the finalising part yet, just adding the files to the menu.