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afterdawn.com > forums > dvd±r discussion > dvd±r for newbies > burning longer movies! 8.5gb vs 9.4gb double sided dvds
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Burning longer movies! 8.5gb VS 9.4gb double sided DVDs
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candago29
Newbie
_ 		24. August 2005 @ 07:36 _ Link to this message    Send private message to this user   
When I want to back up a longer running movie or include extra features there are only a couple options with the 4.7gb media. I can either compress the crap out of the data or get those expensive 8.5gb dual layer DVDs. I was wondering if anyone has been using the double sided disks for burning, and how can this be done? These double sided disks are cheaper than the dual layer 8.5gb DVDs. So here are my questions.

1.) How do you burn with the double sided 9.4gb DVDs? Do you just flip it over after one side is done and then it burns the rest on the other side?

2.) When compressing data to 50-60% am I pushing it? Even with quality media?

3.) Is my best option to just go with the expensive 8.5gb disks.

I?m using DVD shrink and DVD decrypter.

Thanks in advance for any help!
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larrylje
AfterDawn Addict
_ 		24. August 2005 @ 12:30 _ Link to this message    Send private message to this user   
I compress down to 50 to 60% on my disc if need be and havent had any quility issues doing it.

As of the two sidded disc, id guess what you stated would be true. You burn 1 side and flip it over to burn the other side. I have never used them but I would figure that would be the way to do it.

But if you dont want to take the chance of to low of quility then the dual layer disc would be the way to go.

I just know i have never had quility issues when I compress as low as 50% I would never go below that and the quility looks perfect on my 67in wide screen TV
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candago29
Newbie
_ 		24. August 2005 @ 13:32 _ Link to this message    Send private message to this user   
Thanks for the info Larry! Maybe I'll just compress down with some good media and see how it turns out. I really haven't tried that yet becasue everything I read said to stay above 70%.

Peace!
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Peace!
Pangloss
Junior Member
_ 		24. August 2005 @ 17:43 _ Link to this message    Send private message to this user   
Only problem with compressing that much is that it really shows on very large sets. If you're projecting to a 100" screen, for example, it looks pretty bad to me below about 80% compression. I discovered this the hard way after buying a projector, and finding that most of my copied movies were unwatchable.

Of course, your mileage may vary. Quality is in the eye of the beholder.

With a smaller/normal TV set, it really makes no difference unless you really squish the heck out of it.
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larrylje
AfterDawn Addict
_ 		24. August 2005 @ 17:46 _ Link to this message    Send private message to this user   
Like I said I have a 67" widescreen myself and it dosent make a diffrence compressing to that level. The thing is most DVDs dont need to be compressed to that level theres just a handfull of DVDs that actully get down to 50% compression. All you can do is do 1 and see what it looks like on your set.
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Pangloss
Junior Member
_ 		24. August 2005 @ 17:53 _ Link to this message    Send private message to this user   
That sounds about right, actually. There's a huge difference between 67" and 100+. I say "unwatchable" but most of my friends and my wife couldn't really see much of a difference unless I stopped the movie, walked up to the screen, and actually pointed out the little artifacts and blocks. They were pretty small.

So yah I agree, generally you can compress quite a bit. It's just a good idea to run a few tests and see if you're happy with the quality level, since some are more sensitive to it than others. :-)
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candago29
Newbie
_ 		31. August 2005 @ 21:23 _ Link to this message    Send private message to this user   
Thanks for the info guys! I didn't realize until you said it that the big screens may have an affect on the playback quality if you compress too much. That makes perfect sense now that I think about it. Its good to know in my case because I don't have the big TV and now I will not shy away from compressing the longer movies if need be. If I get the big screen later on I'll cross that bridge when I get there. I'm hoping the 8.5gb dual layer dvds will be cheaper by then.

PEACE!
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