A few months ago I made a backup of several files which took me 6 DVDs.
There were no problems during the backup process.
Now I need those files back, and after several trials, I noticed that there was some problem with the backup part 3 (I can’t copy the .cbu file from the DVD to the computer, whereas this doesn’t happen with the other DVDs).
The problem is, without DVD number 3 I can’t backup the data from the remaining DVDS.
You mentioned something about error code 100023.
This usually means data error (cyclic redundancy check). Is DVD no3 scratched or dirty?
Only if split no3 can be read properly, you can restore all data.