[mythtv-users] How long should a mythdvd perfect rip take?

[Steve Hodge]

On 6/27/06, Marco Nelissen <marcone at xs4all.nl> wrote:
> >   - DVD Drive - Lite-On 1683S.  I've read numerous places on the web
> >   that these drives can only effectively read a dual-layer DVD a 8x.  I belive
> >   8x means 8*150Kbytes per second, which is 1.2Mbytes per second.  Doing
> >   the math, that means it would/should take 100+ minutes to read a 6-8Gig
> >   DVD.  This doesn't seem correct, so surely my logic is wrong.
>
> The 'x'-number is different for CDs and DVDs. For CDs, Nx means 150 KB/sec
> times N, whereas for DVDs it's about 1.4 MB/sec times N.

Yes, 1x DVD speed is 1353KB/sec so 8x is 10.5 MB/sec. But that is
probably a peek speed rather than a fixed speed over the entire disc.

>  Some DVD drives also are much slower reading movie-DVDs than they are data-DVDs.

I guess some drives must be slow at decoding CSS? Because otherwise a
movie DVD is just a data DVD with a particular directory structure.

Steve