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beforente
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9. August 2006 @ 08:02 _ Link to this message    Send private message to this user   
What makes the speed of encoding change. Some DVD's are encoded at a speed of 3200 KB/s while others are encoding as slow as 850 KB/s, what gives?

Thanks for your time.
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9. August 2006 @ 08:22 _ Link to this message    Send private message to this user   
possibly the percentage of compression involved. less compression, faster encoding. not sure if that is relevant to your situation or not. what software are you using?

DVDFab Decrypter (Express): http://www.dvdidle.com/free.htm
VobBlanker: http://www.videohelp.com/tools?tool=580
DVD Shrink (and guide): http://www.mrbass.org/dvdshrink/
Imgburn http://www.imgburn.com/
new "DVDFAB Decrypter + VobBlanker + DVD Shrink + ImgBurn" guide by Alkohol http://forums.afterdawn.com/thread_view.cfm/334154
beforente
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9. August 2006 @ 08:45 _ Link to this message    Send private message to this user   
I use Shrink; I did think of the compression involved but the slow down just does not seem to correlate with the amount of compression. I just burned Serenity and it's average compression was 54% and it took 2hrs & 20 min to encode. V for Vendetta was compresed aroung 64% and only took 42 minutes.

Thanks surfgeo
Senior Member
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9. August 2006 @ 08:47 _ Link to this message    Send private message to this user   
@ beforente,

i think surfgeo, is right, it depends on the compression of the movie and it depends on the specs of ur PC
Quote:
it took 2hrs & 20 min to encode

this is way too long, have u checked if DMA is on?
What r the specs of ur PC?
edit
here is a guide to check DMA
http://bbmayo.home.comcast.net/FAQ.htm



"When I look at the smiles on all the childrens faces, I just know theyre about to jab me with something."- Homer Simpson

This message has been edited since posting. Last time this message was edited on 9. August 2006 @ 08:52

Member
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9. August 2006 @ 08:53 _ Link to this message    Send private message to this user   
@beforente

yeah, the duration of encoding doesn't seem proportional to the relative amounts of compression. i am virtually 100% ignorant about the technology of encoding and compression, however, i think it is possible that it might have something to do with the original material that you are compressing, maybe the bitrate or something. it's POSSIBLE that the originals may have more or less information information that has to be processed by shrink, even at the same compression ratio. i could be completely wrong about that. i hope someone knowledgeable will respond with an answer to explain what you describe. i'd like to know the answer myself!

DVDFab Decrypter (Express): http://www.dvdidle.com/free.htm
VobBlanker: http://www.videohelp.com/tools?tool=580
DVD Shrink (and guide): http://www.mrbass.org/dvdshrink/
Imgburn http://www.imgburn.com/
new "DVDFAB Decrypter + VobBlanker + DVD Shrink + ImgBurn" guide by Alkohol http://forums.afterdawn.com/thread_view.cfm/334154
Senior Member
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9. August 2006 @ 09:10 _ Link to this message    Send private message to this user   
^^ You hit the nail right on the head. The bitrate has a lot to do with the encoding time. Something like a live music DVD or a super FX movie like Star Wars will probably take a lot longer than a regular ol' 2 hour movie.

With that said, the compression rate, regardless of the original disc's bitrate, has a lot to do with the encoding time too.

PIO really slows down the process--you should change it back to DMA. Defragmenting also helps.

Latest AnyDVD to rip > VOBB to blank the unwanted on a DVD > Shrink to compress > ImgBurn to burn = Never starting a thread asking how to backup a movie
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beforente
Newbie
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9. August 2006 @ 11:25 _ Link to this message    Send private message to this user   
300bowler - yes 2hrs & 20 min. talk abou watching paint dry!

@beforente & Mr Pink - I am unsure what you are saying about bitrate, isn't the encode rates I show 850KB/s & 3200KB/s the bitrates? Are DVD's encoded with a specific bitrate? If this is true why can you read/write at multiples eg. read @ 2.4X.

And a defragment is not my problem I have a fairly new external 300g drive which is only 1/2 full and if my pc was a problem wouldn't all movies encode slowly?

Thanks all
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