Hello, I was given three DVDs containing video taken from some old Super 8 cine. Of course, the original media no longer exists and these are the only copies of the DVDs...
Two read fairly quickly, with just a few bad sectors each. A bit of splitting and a few retries later, I had the lot. The third is different. I'm now in day 3 and have rescued 2471MB. I don't know how much data is on the disk: ddrescue went for all 4GB+ but I suspect that some sectors are missing at the start such that the size is unknown. Which driver/layer/device is responsible for determining size of tha DVD? As it slowed to a stop after about 2500MB, I'm now using this command line. ddrescue -r 100 -b 2048 -c 1 -s 2500MB -d /dev/sr0 mem1.iso mem1.log Is this the best I can do? Any other ideas? (I added the -c 1 and -d after the first "fast" pass.) I'm currently seeing - Initial status (read from logfile) rescued: 2461 MB, errsize: 38072 kB, errors: 4725 Current status rescued: 2471 MB, errsize: 28211 kB, current rate: 0 B/s ipos: 2224 MB, errors: 4273, average rate: 216 B/s opos: 2224 MB, time from last successful read: 42 s Retrying bad sectors... Retry 1 The last run has been going for 12 hours and has got another 10MB to scrape off. Look at that average rate - even assuming it doesn't slow down, it'll be another two days to get all 2500MB, and I'll then have to move on to the rest of the disk. Thanks Ian _______________________________________________ Bug-ddrescue mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-ddrescue
