Why use DVD Decrypter?

[MMBirdx]

Why cannot directly copy from DVD to hard drive? Thanks.

[dvdx_925]

Commercial DVD's have copy protection built into them such as macrovision which prevents you from copying them. Even if u manage to copy them, the picture will be all distorted, that is the colour screws up. DVD Decrypter removes this analoge protection, thus a copy that works.

[Dragonsf]

Commercial DVD's have copy protection built into them such as macrovision which prevents you from copying them. Even if u manage to copy them, the picture will be all distorted, that is the colour screws up. DVD Decrypter removes this analoge protection, thus a copy that works.

Now that's really interesting.I always thought decrypting had something to do with CSS (Content scrambling).So DVDDecrypter did (as the name implies) decrypt the file contents using DeCSS and thus allowing to copy the files on to the HDD.MV ist just (IMHO) part of the Authoring process- by extracting the video and audio parts of the vobs and reauthoring, such 'copy protection' will be removed.
Strange, I'll never stop learning.

[vitualis]

Dragon, you are right.

The benefit of DVD Decrypter and other ripping programs is that it decodes CSS.

Macrovision exists only as a flag in the data stream and for purposes of digital conversion on the computer, it is irrelevant whether you remove this flag or not.

Regards.

[dvdx_925]

Just a question. Is it different for standalone dvd players. I always thought when u try and copy a dvd to vhs and the colour screws it up, this is macrovision. am i right or not.

[Dragonsf]

Just a question. Is it different for standalone dvd players. I always thought when u try and copy a dvd to vhs and the colour screws it up, this is macrovision. am i right or not.

Yes, that's MV (the analog part of the 'copy protecting'.This is done (only) by the player and not the DVD itself.The DVD structure tells the player just, when to apply MV.Nothing to do with copyying to a HDD inside a PC.

[Oscar wallace]

Press "W" and you can burn as well,one of my favourite pieces of software.

[vitualis]

As per Dragon's post.

A DVD generally has two forms of copy protection. CSS (content scrambling system) encrypts the video content to prevent digital copying. Macrovision protects analogue copying.

The video on a DVD does not actually have the Macrovision signal there. The DVD player generates it "on demand" which is why you can deactivate Macrovision on many DVD players.

On a computer when you are trying to copy a DVD, that involves copying over the digital data on the DVD so Macrovision doesn't come into it at all. The stumbling part is CSS. DVD rippers like DVD Decryptor breaks the CSS encryption so you get the unencrypted video on your HDD --> from there you can convert to any format you choose (or rebuild another DVD).

Regards.

[nocarebear]

The video on a DVD does not actually have the Macrovision signal there. The DVD player generates it "on demand" which is why you can deactivate Macrovision on many DVD players.

On a computer when you are trying to copy a DVD, that involves copying over the digital data on the DVD so Macrovision doesn't come into it at all. The stumbling part is CSS. DVD rippers like DVD Decryptor breaks the CSS encryption so you get the unencrypted video on your HDD --> from there you can convert to any format you choose (or rebuild another DVD).

Regards.

Is that the reason why I can still make a backup on to (S)VCD when I never check the Demacrovision box in SmartRipper? I always wondered I never needed to Demacrovision it during the rip process

[gitreel]

Why cannot directly copy from DVD to hard drive? Thanks.

It is encrypted. If you did a straight copy, all you would get is scrambled garbage.

[ella]

Just a question. Is it different for standalone dvd players. I always thought when u try and copy a dvd to vhs and the colour screws it up, this is macrovision. am i right or not.

Yes you are quite right. You may see some details of it here
http://www.howstuffworks.com/question313.htm
BTW the same problem ( I mean macrovision protection ) will be if you are going or are using standalone DVD Recorder ( One like Panasonic DMR or Philips DVDR e.t.c ). In this case you will be stopped not only by analog macrovision but also by digital known as CGMS/A
http://www.dimax.com.ua/English/connect.htm
I wonder what shell We get in the next few years when the HDTV and DV standard will exchange analog video.