dvd files....

dvd nowadays r bigger then 4.7gbs....and i was wondering if it was possible to convert those dvds to something like a xvid avi then convert it back to dvd....would that possibly shrink it so it would b under 4.7gbs??..stupid question but im curious....
 
Tommie said:
dvd nowadays r bigger then 4.7gbs....and i was wondering if it was possible to convert those dvds to something like a xvid avi then convert it back to dvd....would that possibly shrink it so it would b under 4.7gbs??..stupid question but im curious....

you dont have to but you can :)

you can either RIP out the unwanted parts and just get the movie part and burn to 4.7gb

or the common way is to rip the whole disk to hd and shrink the files down with DVDSHRINK or NERO RECODE (which is pretty much the same as shrink) :)

there are other ways listed here at the forum in the tutorials and dvd section :)
 
To do a FULL RE-ENCODE, it would be better to avoid another lossy codec in the middle - there ARE some lossless video codecs, such as Alparysoft - http://www.alparysoft.com/products.php?id=8&item=35 - but the rate of compression will be quite low compared to lossy - the "visually lossless" variant might be acceptable as an intermediary, but is not ideal, as the object is to "do no harm" between the rip and re-encode.

With an acceptable lossless or pseudo-lossless rip, then the problem is an encoding one, getting your chosen encoder to deliver the bitrate that you want. Rescaling to a lower resolution, such as half-D1, may also be required if you want a more extreme shirink, at the point where the encoder just cannot hit the bitrate you want without severe degradation.
 
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