SV650.org - SV650 & Gladius 650 Forum - View Single Post

Bibio · 11-03-18, 11:45 PM

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.

11-03-18, 11:45 PM	#3
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: Video file size issue 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.