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Wednesday 27.8.2025 / 06:24
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afterdawn.com > forums > software specific discussion > dvd shrink forum > compression percentages
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ZCS626
Member
_ 		5. February 2007 @ 13:31 _ Link to this message    Send private message to this user   
so at what percent would you REALLY be able to tell a significant sacrifice in picture quality, on a single layer DVD?

for example, FlyBoys is around 70% compressed on a SL DVD+R, i have a 32" LCD tv with component video cables going to my DVD player. would i be able to tell a huge difference from it requiring no compression?

the reason why i ask is, DL discs are significantly more expensive than single layers (even when on sale). opinions?
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born2ride
Senior Member
_ 		5. February 2007 @ 14:31 _ Link to this message    Send private message to this user   
i normally do just main movies so they seem to not need much on compression. .when adding al the extra then compression gets heavy
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movies27
Senior Member
_ 		5. February 2007 @ 14:45 _ Link to this message    Send private message to this user   
i have a 32" tv also but a full disc backup of flyboys on a DVD-5 looks fine to me on mine.
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born2ride
Senior Member
_ 		5. February 2007 @ 14:48 _ Link to this message    Send private message to this user   
movies27
do you remember how big flyboys was? whole disc
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This message has been edited since posting. Last time this message was edited on 5. February 2007 @ 14:49
ZCS626
Member
_ 		5. February 2007 @ 16:16 _ Link to this message    Send private message to this user   
flyboys is big, about 7.3 gigs on just movie + menus.

i took out all the unecessary languages and got it to 70% compression exactly on a single layer dvd.
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Shardel
Suspended permanently
_ 		6. February 2007 @ 03:24 _ Link to this message    Send private message to this user   
I have an LCD TV also. Any disc I write with 70% compression looks
fine to me. I usually do movie only because I get 100% sometimes.
I have also run one of these on my son's upconverting DVD player.
They work very well with that too. I'm using a Philips DVD player.
You don't need the chapters on it because for the last 5 movies
played it will automatically start where you stopped watching.
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bbmayo
AfterDawn Addict
_ 		6. February 2007 @ 05:11 _ Link to this message    Send private message to this user   
Hi ZCS626,

While you probably aren't going to notice any difference there is a loss in quality. Maybe if you were watching that movie on a 60" Digital TV you might notice a differance, but again the average person won't be able to recognize the difference.

Compression is a funny thing when it comes to video because it really isn't compressing at all it is actually removing pieces of video from certain frames. Do yourself a favor and read this it should help you understand a little better about video compression "Video Compression
and if you really want to get smart try this one MPEG-2 Video Compression
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