120 minute movie over 4.7 in size

[EcchiNut]

Ok, this probably a very basic question. Obviously im new to dvd authoring. My dvd backup is under 120 minutes in length, but well over 4.7 gigs in space. I used smart ripper to rip all the stuff. And then used IFOedit and got rid of all the extras. So all that remains is the video, and the english audio. no subs or extras or even menus. My thinking the whole "120 min" on these discs, is more subjectable standard for us "amateur" dvd recorders. Like pro dvd movies uses higher bitrates then were expected to? Unless the Video is the 120 min "rate" and the audio is causing the over-size. All i got is the vob's and IFO's. Can the audio be reduced smaller? This is based off a very old DVD (StarGate - it was on a 3.5gig double sided DVD) so it could be older audio technology?

[framerman]

I don't think so. There is a standard out there so every disc made should play in every standalone player. The audio might be an older dolby, but I think you're not supposed to change the audio rate whatsoever. What is your exact size of your files. Also from my understanding, you need the .bup files too.

[EcchiNut]

I have the BUP files too. But the final file size is:
6,244,581,376 bytes (5.81 GB)
but the movie is only 118 minutes. Everything extra has been cut. So it doesn't really make sense, if this is suppose to be 120 minutes disc.

[REECYCUP]

Unless im misunderstanding u
time isnt the only deciding factor
bitrate is most of it

[EcchiNut]

thats what I was thinking. The bitrate must be really above spec if its that much. Is there a certain bitrate spec we follow for 120min movies?

[auenf]

the bitrate for 120mins on a DVD-5 is somewhere between 4 and 4.5 mbit (which you should be able to work out with any old bitrate calculator)

Enf...

[EcchiNut]

yah the bitrate must be way over-done or something. I made a backup of my Tomorrow Never Dies dvd. and only included the movie. It is the same timeline length as my StarGate, but oddly enough, it was only 4.5Gb (4.1GB). Clearly something weird is going on with my StarGate. I actually took a look at the case in detail for once. Besides it being put on a double sided 3.5 gig disc, (and being really old like 5+ years). It also didnt have a UPC number, in its place was a printed "For promotional use only". It came free with my first dvd player 5 years ago. So im not going to complain. But its very odd thing to see. And to have such a large file size after when compared to other movies of the same timelength, with everything "extra" ripped out.

[Trahald]

thats only about 5.4 mb/sec for all streams combined.. thats not unreasonable.. its up to the people authoring the disk.. it can go higher than that and still be in spec

[RadicalEd]

yeah, 120 mins maxxing the DVD specs (9 mbps total bitrate) is 7.72 gb
If I'm not mistaken that's the idea behind the Superbit discs that've been showing up in Europe lately, max out both layers and minimize extras for the highest possible bitrate.

[lucindrea]

120 mins at 6mb/s is aprox 5.5G .. and dvd specs go above 9mb/s ( 10 with combined audio if i rember correctly ) .. so for a 120min to go over 4.5G does not suprize me at all ( i expect it on most movies ) ...
the best way around this that ihave found is to use the cce/scenartist/ifo method described in the guides here on doom9 .. if your LUCKY you can get away with just removing the extras , but either way you are going to end up re-encodeing ... their is a tmpgenc method also if you dont have access to cce and even a rempeg method .. their are alot of ways to re-encode the video.