K so basically I was doing a heavy ddrescue image of a drive that was taking about a month to get done. The sad part is that about 20% through the recovery we lost power at my place of work

(yes that is a very sad face indeed) so basically I did make a log file and managed to get things up ad going. When I got some sort of corruption error that it wasnt able to write anymore. So in order to keep things moving I just carried the image on using the log file to a new image eg drive.img (20%) drive1.img (80%). is there anyway I can join these two images together now or am I unlucky and have to start all over again???