|That is hard to say. To me it sounds like the error is in trying to read the data off the internal hard drive. Might not hurt to run chkdsk and defrag on the computer. |
That said, IMO the DVDR method is a more reliable method than using an external drive. There is less chance of data loss with optical media if you verify the backup. Also it is cheap and easy to make multiple copies.
You probably have all the data on the computer on ONE partition. Placing all the data on one partition presents the problem you have experienced. If you ever need to restore from the media, whichever method you use, it will be even more time consuming.
A better method is to use multiple partitions. Install the OS and core programs to the C: partition. Core programs would include programs that need constant updates. Things like AV programs, spyware removers, etc.
Then install your main programs to the D: partiton. These programs rarely change so the frequency of backups will be far less often.
Then install person files like your music collection and photos on a third partition. That partition rarely will get re-imaged and isn't keyed to the OS.
Now when you image the OS partition will probably be in the range of 6/12GB, which will easily image to 3 DVDR disks with normal compression. The program partition may take more disks but will not need to be imaged very often. The personal data doesn't really need to be imaged. Just COPY without any compression. Music and photos are already compressed so you won't save any space anyway.
Now for the interesting part. If the OS gets buggered up and you want to restore you can restore the C: partition without the need to restore any other partitions. All programs that were installed to the D: partition when you last imaged will work without restoring them or re-installing them.
There are variations on this theme to fit your person computer usage. Look at the link below for additional info on partitioning.
BTW, I forgot to commend you for backing up. That is the most important part. How and where is secondary. If you sort out the issue with the external drive and wish to try multiple partitions follow my suggestions and just image each partition separately to a folder on the external drive. Use folder labels that indicate what it is. Keep two versions for each partition.
Still burn your personal data to DVDR or CDR.