Re: [Dvdrtools-users] crypt ISO image -- can't encrypt images any more than you can compress

[Alessio Sangalli]

Arndt Schoenewald wrote:

> Just a quick answer to two questions that have been posed in this
> thread:
>
> 1. Yes, cdrecord/cdrecord-PRODVD/dvdrecord can write image files
>    of arbitrary format to the {CD,DVD}-{R,RW} drives; the images
>    do not have to be ISO9660.

Interesting. I was just blanking a cd-rw to make such a test...!

> 2. Yes, you can copy DVDs with "dd"; it may even work better than
>    using "dd" to copy CDs since DVDs do not have multiple tracks
>    or sessions (at least not yet). (Normally, you'd want to use
>    "readcd" from the cdrecord package to copy a CD.)

cool. Just few questions then.

1) is readcd any way better than dd to read DVDs? The answer is 
affermative for CDs, but as you said before DVDs are not (yet) 
multitrack, so I think it's the same.

the next answer doesn't want to be illegal: there are many programs to 
read and copy movies but I want to understand:

2) if I read a *VIDEO* dvd with 'dd', I won't be able to _play_ the 
movie because it's encrypted with CSS. But what if I record that image 
on DVD-R? Is this a correct copy of the film? (I know most movies are on 
a 9GB DVD, but let's consider DVD-5 ones for this example)


bye, thank you
as