On 9/24/19 8:14 AM, Ted Park wrote:
At anyrate, I use dd to copy the dvd to HD. On HD, the size of the
iso file (after copying SOME dvd's) is in excess of 20GB. such as
22GB+, 26GB+...etc Could someone explain why this is? I thought dvd's
have capacities of 4.7GB, 8.9GB for double density. I also know about
dvd's that have slightly more than 10GB capacity.
dd doesn’t know about any of that. Your dvd drive might handle the
copy protection in a way that causes this, or it might be the driver
(did you use srX or dvd device? Might not matter) Usually you
determine how many blocks you want and the block size, using isoinfo
for example, before you dd from a cd/dvd drive so you know how big the
image is going to be before you start. But your case is interesting,
more often you’ll get a smaller file when content scrambling is the
culprit due to the read erroring out along the way, is the resultant
image file usable?
I should have mentioned that the resulting iso plays only partially,
that is: it (meaning VLC, mplayer, ffplay) play only the intro and stop.
_______________________________________________
ffmpeg-user mailing list
[email protected]
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
[email protected] with subject "unsubscribe".
