[ale] DVD ripping

[James Sumners]

He is not burning the images to new discs. He is reading them directly
from the hard drive.

You might have a DMA issue. That is, your hard drive may not be
reading as fast as it can. Do some searching for hdparm tutorials.

Personally, I would rather transcode the main content. It reduces the
file size, and makes viewing easier (don't have to deal with menus,
etc.). You're willing to store 4.7GB and 8GB image files. So you don't
have to go crazy with the compression to get the file sizes down to
700MB.  Therefore, you can have a further compressed file (it's
already compressed on the DVD) but still have a decent picture.

On 10/31/07, James P. Kinney III <jkinney at localnetsolutions.com> wrote:
> On Wed, 2007-10-31 at 21:40 -0400, Scott Castaline wrote:
>
> > Actually the 3rd and 4th DVDs I didn't do until this morning after 1st
> > booting and the box was off for several hours. When I remove the media
> > it does not feel hot, and I am able to do several back2back copies of
> > DVDs with k3b without any problems. In fact that's how I copied the 3rd
> > and 4th DVDs and then 3 double sided disks of the 1st season of House.
> > Each disk/side was done one right after the other with no stopping. Now
> > playback is a different story as there seems to some dropping and
> > freezing happening. I'm not sure if it's the harddrive or the CPU. The
> > harddrive is a 500GB SATAII on an Adaptec dual port SATAI HA and the CPU
> > is an AMD Athlon 1800+ with 1GB RAM.
> > Any ideas or maybe I should encode the images? (or is it transcode?)
>
> You have to _boot_ your system :) It doesn't "Just Run" ?!
>
> I would first try slowing down the record rate. I have half a bazillion
> DVD's here that _claim_ to be burnable at speed x18 or x32 or xbazillion
> but they really only work well at x2 or x4. All of the dual layer disks
> I have to burn very slowly or else I get a new coaster.
>
> I miss the AOL CDs. They made such good coasters.
>
> I digress....
>
> Dropping and freezing on playback is a decompression problem with your
> CPU/IO having a problem. Either the bandwidth is too slow or the CPU is
> bogging down and the result is a freeze or dropped section to keep up.
>
> That said, I have had no problem playing DVD's (commercial pressed
> movies) on IBM Thinkpads running 700 MHz P3's with 512 MB RAM (Fedora 4
> with Ogle as the player) even in full screen mode. So I suspect there is
> a failure elsewhere.
>
> Test the player with commercial disk. Then make a test copy of the disk
> and try the player with the copy. If the copy plays poorly, make another
> copy and slow down the burn speed to x1 or x2. If it still is crappy,
> you may be looking at artifacts from copy-protection stuff.
> --
> James P. Kinney III
> CEO & Director of Engineering
> Local Net Solutions,LLC
> 770-493-8244
> http://www.localnetsolutions.com
>
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney at localnetsolutions.com>
> Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
>
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>


-- 
James Sumners
http://james.roomfullofmirrors.com/

"All governments suffer a recurring problem: Power attracts
pathological personalities. It is not that power corrupts but that it
is magnetic to the corruptible. Such people have a tendency to become
drunk on violence, a condition to which they are quickly addicted."

Missionaria Protectiva, Text QIV (decto)
CH:D 59