I am having difficulties ejecting the CD now. It ejected once, I switched CDs, but now it won't. What am I doing wrong? I didn't umount the device with the first eject but to get md5sum to run again I remounted... it complained.... but then it ran again. Now I try to umount : bmike1@Michael-Notebook:/mnt/dvdrw$ umount dvdrw umount: dvdrw is not mounted (according to mtab) bmike1@Michael-Notebook:/mnt/dvdrw$ This happened the first time I did this and I turned the computeroff to eject the CD. On Mon, Nov 28, 2011 at 2:35 PM, Michael Havens wrote: > hmmmmm..... this doesn't look good! > > bmike1@Michael-Notebook:/mnt/dvdrw$ sudo md5sum -c md5sum.txt|grep > -v > 'OK$'md5sum: ./casper/filesystem.squashfs: Input/output error > ./casper/filesystem.squashfs: FAILED open or read > md5sum: WARNING: 1 of 27 listed files could not be read > bmike1@Michael-Notebook:/mnt/dvdrw$ > > Lets look at the other d/l I did: it seems that burn is good: > > bmike1@Michael-Notebook:/mnt/dvdrw$ sudo mount /dev/dvdrw /mnt/dvdrw > mount: block device /dev/sr0 is write-protected, mounting read-only > mount: /dev/sr0 already mounted or /mnt/dvdrw busy > mount: according to mtab, /dev/sr0 is already mounted on /mnt/dvdrw > bmike1@Michael-Notebook:/mnt/dvdrw$ sudo md5sum -c md5sum.txt|grep -v > 'OK$' > bmike1@Michael-Notebook:/mnt/dvdrw$ > -- > :-)~MIKE~(-: > -- :-)~MIKE~(-: