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a question for DVD experts

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I'm rather new to DVD playback technology, and I have a question or two:

I've made a backup of an entire DVD, so now I can play it from the disk.
First time I watched the film was directly from the DVD, and it was ok,
but when I copied everything to hard disk, I noticed that one of the VOB's
of the main movie is skipping, and I checked the same VOB on the original disk,
and it skipps there too.

It's kind of strange though because the timer shows linear progress and the seconds
just go on even though the image and sound are returning.

My question would be this:
1.Why does my player (powerDVD) play smooth in the regular playback and skipps
on the VOB files of the SAME footage?

2. Since there is no trouble when I am playing it as a full DVD from hard disk, should I
keep this rip, or try and find some undamaged copy of the same film?
(I'n other words, will this damaged VOB cause me any trouble on different systems in
the future?)
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DAYV knows not what he says. the problem may be a bad copy. You do realise under US, Australian and Brittish Laws it is illegal to make a back-up copy of a DVD you own, right?
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what if i own it and make my one backup copy...then my house blows up and my original gets destroyed, but cause i kept my archive copy in a safty deposit box i still have that. can i then make a new backup of my backup?

-Darth Simon
Why Anakin really turned to the dark side:
"Anakin, You're father I am" - Yoda
"No. No. That's not true! That's impossible!" - Anakin

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*touchy people disclaimer*
some or all of the above comments are partially exaggerated to convey a point, none of the comments are meant as personal attacks on anyone mentioned or reference in the above post
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Originally posted by: PSYCHO_DAYV
LEGALLY YOU ARE ALLOWED TO MAKE ONE ARCHIVE COPY AND ONLY ONE OF A DVD MOVIE THAT YOU OWN.
No, you are not.
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Historically you have been allowed to make a backup copy of a media item you own. It is called a fair use doctrine and has been around far longer than DVDs or the draconian DMCA. It is technically illegal due to the DMCA and this is why 321 Studios was forced to pull its DVDXCopy software from store shelves after being sued by the MPAA-it violates the section of the DMCA that disallows products to bypass copy protection. Of course, any savvy PC user would simply download DVDShrink and sidestep this nonsense-Shrink not only bypasses copy protections and region coding, it removes them altogether in the output files. Not exactly what the copyright control freaks want, but you cannot sue an anonymous programmer living in Spain who does not make any profit or even accept donations for the work involved.

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Originally posted by: DanielB
Quote
Originally posted by: PSYCHO_DAYV
LEGALLY YOU ARE ALLOWED TO MAKE ONE ARCHIVE COPY AND ONLY ONE OF A DVD MOVIE THAT YOU OWN.
No, you are not.

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TR47 is correct. Damn the DMCA! I still use DVD X Copy.

Princess Leia: I happen to like nice men.
Han Solo: I'm a nice man.

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Originally posted by: TR47
but you cannot sue an anonymous programmer living in Spain who does not make any profit or even accept donations for the work involved.


That hasn't stopped the MPAA in their lawsuit against that Norwegian (Swedish?) kid who wrote the DeCSS crack code. If they want to, they can find him.
"You fell victim to one of the classic blunders, the most famous of which is 'Never get involved in a land war in Asia'."
--Vizzini (Wallace Shawn), The Princess Bride
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Kevin A
Webmaster/Primary Cynic
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kapgar.com
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I didn't think he actually wrote a program. I thought he just wrote the crack code that gets incorporated into other people's software. Maybe I'm misunderstanding.
"You fell victim to one of the classic blunders, the most famous of which is 'Never get involved in a land war in Asia'."
--Vizzini (Wallace Shawn), The Princess Bride
-------------------------
Kevin A
Webmaster/Primary Cynic
kapgar.typepad.com
kapgar.com
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And while he was sued, i was looking online for information on when if at all it is legal to copy a dvd you own when this was first posted, and found something saying that he successfully defended himself in court

-Darth Simon
Why Anakin really turned to the dark side:
"Anakin, You're father I am" - Yoda
"No. No. That's not true! That's impossible!" - Anakin

0100111001101001011011100110101001100001

*touchy people disclaimer*
some or all of the above comments are partially exaggerated to convey a point, none of the comments are meant as personal attacks on anyone mentioned or reference in the above post
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Thankyou TR-47, for the US law. British law does not allow for copying for back-ups, Australian law does not either. That isn't to say acceptable use has been prosecuted here, however it is illegal to make back-ups of CD's (even onto MP3 players) and DVD's. In Australia you are allowed to make a back-up copy of software. I can't believe so many people think it's their legal right to make back-ups, when it is actually illegal. With that said, I can buy a software program which employees a copy-protection system, such as SafeDisc, and using my CD burner create a CD-R copy copying the safe-disc data (which is not really data, but we'll call it that anyway) so that my CD-R behaves in the same way as the original CD; and that is not illegal.
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That's because the US, Australia, the UK and Japan are all signatories to the WIPO treaties, and therefore have to have copyright laws that are in line with the treaties.

Princess Leia: I happen to like nice men.
Han Solo: I'm a nice man.

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Originally posted by: GundarkHunter
That's because the US, Australia, the UK and Japan are all signatories to the WIPO treaties, and therefore have to have copyright laws that are in line with the treaties.
Not really, I mean they do let us have a legal right to back-up software, remember. I personally think that right should be protected and software companies which try to take it away from us by employing such copy-protections methods as SafeDisc should be prosecuted for interfering with the consumer's legal rights. Let me give you an example, it is illegal for a Lawyer to refuse to represent me in court. Illegal. This is because I have a legal right to legal representation, therefore they are under legal obligation to represent me in court if I want them too.

Now lawyers could get away with suggesting other firms, etc - but if I stick to my guns and they say "no I will not represent you" then that lawyer has interfered with my legal rights, and I could prosecute him for it. I think that software protection should be handled the same way, I have a legal right to back-ups there, if someone tries to prevent me from exercising that right they should be liable.

Anyhow back to the original question, cubebox, there may have been an error reading the original DVD that was copied. You could try cleaning the disc and starting again. Macrovision does not apply to PC copying, CSS encryption prevents you from copying the files off the disc in the first place, the fact that you copied them proves either there was no CSS or that it was cracked.
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Actually, I'll just explain macrovision quickly - it's not part of the signal it's not encoded in the video like it was on VHS. Rather, there are "flags" which instruct the player to enable its macrovision chip/circuit. It's a terrible system really. So, when you create a back-up on the PC those flags are simply copied over, or removed depending on the settings of your program, it has nothing to do with encryption.
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No, CSS does not control region coding, flags do - just like macrovision. As I said before CSS encryption makes it physically impossible to copy the files straight off the disc - even in the encrypted format. The files MUST be decrypted to be copied. If they are copied it means they are decrypted.
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Originally posted by: PSYCHO_DAYV
YOU'RE WRONG danielb. I DEAL WITH MAKING DVDs EVERYDAY. YOU CAN COPY FILES OVER EVEN IF THEY HAVE THE CSS ENCRYPTION. THE PROBLEM IS THEY WILL BE SCRAMBLED, BUT YOU CAN TECHNICALLY COPY THEM TO YOUR DESKTOP.
Explain how.