Old 28-12-2008   #1
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Clone DVD vs Full Disc?

Hey everyone, it's me again...

what is a layer break?

I googled the difference between cloning a DVD and copying the full disc, and the difference I found is cloning preserves the layer break, but does not remove the protection.

Copy Full Disc removes the layer break, but it removes all protection.

If I want to Rip all the .VOB, .IFO, and .BUP files to my hard drive to (at a later time)

1.) Convert the files to .MP4 for watching the movie on the go without needing the physical DVD

-and-

2.) Use the Files (the full structure) to burn an EXACT 1:1 copy of the original DVD to play in a standalone DVD player. (Double Layer Verbatim 2.4x 8.5 GB DVD+R media will be used to make the copy)

Which do I choose, Clone or Full Disc Copy?

Last edited by namelessNewJersey; 28-12-2008 at 03:38.
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Old 28-12-2008   #2
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Re: Clone DVD vs Full Disc?

I'll try and take these one at a time.

Layer Break - In the manufacturing process, blank DVDs get a light- sensitive coating that responds to the laser in your DVD RW drive. Some disks are set up so that the coating can be affected once by the laser, on the first pass. These are called Single layer disks.

Dual layer disks are coated slightly differently, and also optically slightly different, and hold twice the info of single layer disks (thus, dual layer)

To write to these dual layer disks, the first pass writes the same as a S/L disk. In order to double the size of files you can write on a D/L, the laser has to offset slightly, and burn a little deeper on the coating layer, writing the second time with the (potential) same amount of info as the first pass.

In order for other systems to know when to stop reading the first layer, and start the second, info is written to the .IFO files indicating where to stop on one side, and start the second.

This is called the layer break.

The layer break is not kept during the read process, as it isn't necessary for your HD. When you start to write the file, the burner will determine where the layer break will occur (on +R discs only) to allow all the data to be written. It is not recommended to use D/L -R discs for video, as the layer break is fixed on those at the end of side one, whether that fits the data or not (you can't split a 1 Gig. .VOB file between layers 1 and 2 - the disk won't play, or at least, only half will).

That's the shortest explanation I can give for the highly technical layer situation.

Clone vs DVD to DVD copy, it's up to you and your preferences.

Going HD to DVD on a cloned file will probably have to be cloned again (to maintain the 'exact copy' you're after), but it shouldn't make any difference to the burner...

O'C

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Old 28-12-2008   #3
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Re: Clone DVD vs Full Disc?

P.S.

I suspect the conversion process requires all protections removed before it will function properly... if that will influence your descision at all...

O'C
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Old 28-12-2008   #4
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Re: Clone DVD vs Full Disc?

Thank you very much, this has been extremely helpful.
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Old 28-12-2008   #5
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Re: Clone DVD vs Full Disc?

Cloning will remove the protection also or else you wouldn't be able to copy it, cloning makes a exact copy of the movie minus the protection
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